About PepCalc: Peptide Calculator
PepCalc: The top-rated peptide calculator app! As featured on leading podcasts including Ben Greenfield, Data Driven Radio, and more. PepCalc is a mathematical utility for laboratory researchers and scientists. It...
PepCalc: The top-rated peptide calculator app! As featured on leading podcasts including Ben Greenfield, Data Driven Radio, and more. PepCalc is a mathematical utility for laboratory researchers and scientists. It provides a digital interface for solving complex reconstitution ratios in educational settings. Stop the guesswork! PepCalc is the simplest way to get peptide reconstitution right. Instant per unit or tick mark results, saved protocols for repeatable calculations, multi-peptide blend support, and smart conversions. Download PepCalc and get answers in seconds. How it works: 1. Enter your peptide amounts and water volume. 2. Choose your units and tick marks. 3. See instant results. Features: FLEXIBLE INPUTS: Set peptide amounts, water volume, units and tick marks, and target amount. PRESETS: Choose 100-unit or 40-unit scales for fast setup, or use fully custom inputs for any volume. MULTI-PEPTIDE BLENDS: Add unlimited peptides to a single volume and calculate each automatically for complex research. SMART CONVERSIONS: Instantly switch between mcg, mg, and g without re-entering data. SAVED PROTOCOLS: Save favorite calculations with names and notes for fast recall. No more retyping. PROTOCOL TRACKING: Today view shows all scheduled draws in order. Tap Log, then adjust the amount if needed SCHEDULE YOUR PROTOCOLS: Tap Add a Schedule on a saved protocol, pick your days/frequency, and your draws are planned PROTOCOL SHARING AND IMPORT: Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code. THEMES: Multiple themes with light and dark mode support to suit everyone's preferences. PRIVATE BY DESIGN: No signup required. No ads. Your data remains on your device. DISCLAIMER: PepCalc is for research and educational purposes only. Not for medical use. This app does not provide medical advice.
Previous Versions
Here you can find the changelog of PepCalc: Peptide Calculator since it was posted on our website on 2021-12-15 16:26:53.
The latest version is 57.5 and it was updated on 2026-10-14 18:22:19. See below the changes in each version.
PepCalc: Peptide Calculator version 57.5
Updated At: 2026-10-14
Changes: Version History What's New:
• SCHEDULE YOUR PROTOCOLS: Tap Add a Schedule on a saved protocol, pick your days/frequency, and your draws are planned
• PROTOCOL TRACKING: Today view shows all scheduled draws in order. Tap Log, then adjust the amount if needed
• YOUR MONTHS AT A GLANCE: History aligns each month, so streaks and missed days stand out
• DRAW HISTORY TIMELINE: Tap a month to see when each draw was planned and when you logged it
• EVERY DRAW, IN DETAIL: Tap a day to see each draw amount, time, and status 57.5 1d ago New! Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code. 57.1 Aug 6 New! Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code. 56.2 Jun 25 Say hello to the Research tab. Your peptide reference, inside PepCalc.
Easier on the eyes: Brighter, more readable accent color in dark mode.
Share PepCalc: Share PepCalc with a friend from the More tab. 56.1 Jun 18 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.5 Apr 29 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.4 Apr 9 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.2 Mar 21 • Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping. 49.3 10/08/2023 • Saved protocols. Our most requested feature! You can now save your favorite reconstitution calculations for easy recall. No more unnecessary retyping.
• New app icon and design tweaks. We've given the app a fresh coat of paint. PepCalc now looks great on all phone and tablet sizes. 49.2 09/14/2023 Minor display tweaks and performance improvements 49.1 08/15/2023 Bug fixes and performance updates 48.1 02/19/2023 Multi-peptide Support
• Our most requested feature! Optionally add additional peptides to a vial and PepCalc will calculate and display the other amounts per dose.
Doses in Vial
• We now calculate and display the number of doses available in the vial.
Better Multi-dose Information
The number of syringes needed will show if the desired dose is greater than 1 full
syringe.
Dark/Light Modes
• Go to Info > Settings and choose Dark, Light, or Operating System color mode.
Squashed all the Bugs
• Fonts now scale correctly based on the text zoom level on your device.
• PepCalc looks great on all phone and tablet sizes. 46.1 10/16/2022 PepCalc is the easiest way to calculate accurate peptide doses. This release adds several features based on user feedback.
• Syringe type selection. To facilitate easier calculation you can now choose between U100 and U40 insulin syringes and then select a Unit count. PepCalc will automatically set the correct volume. No worries if you have a non-insulin syringe. You can pick tuberculin (non-insulin) from the dropdown to get complete control of the inputs.
• PepCalc has a memory! A common request we are excited to deliver - PepCalc now remembers the last values you entered. No more unnecessary retyping!
• Input bugs squashed. You can now enter numbers with or without leading zeros, i.e., .0 or 0.1 40.1.0 02/02/2021 Bug fixes and performance improvements for iOS 14. 3.0 09/28/2020 Minor iPad layout tweaks. 2.0 07/24/2020 1.0 07/22/2020
PepCalc: Peptide Calculator version 57.1
Updated At: 2026-10-07
Changes: Version History New! Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code. 57.1 Aug 6 New! Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code. 56.2 Jun 25 Say hello to the Research tab. Your peptide reference, inside PepCalc.
Easier on the eyes: Brighter, more readable accent color in dark mode.
Share PepCalc: Share PepCalc with a friend from the More tab. 56.1 Jun 18 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.5 Apr 29 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.4 Apr 9 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.2 Mar 21 • Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping. 49.3 10/08/2023 • Saved protocols. Our most requested feature! You can now save your favorite reconstitution calculations for easy recall. No more unnecessary retyping.
• New app icon and design tweaks. We've given the app a fresh coat of paint. PepCalc now looks great on all phone and tablet sizes. 49.2 09/14/2023 Minor display tweaks and performance improvements 49.1 08/15/2023 Bug fixes and performance updates 48.1 02/19/2023 Multi-peptide Support
• Our most requested feature! Optionally add additional peptides to a vial and PepCalc will calculate and display the other amounts per dose.
Doses in Vial
• We now calculate and display the number of doses available in the vial.
Better Multi-dose Information
The number of syringes needed will show if the desired dose is greater than 1 full
syringe.
Dark/Light Modes
• Go to Info > Settings and choose Dark, Light, or Operating System color mode.
Squashed all the Bugs
• Fonts now scale correctly based on the text zoom level on your device.
• PepCalc looks great on all phone and tablet sizes. 46.1 10/16/2022 PepCalc is the easiest way to calculate accurate peptide doses. This release adds several features based on user feedback.
• Syringe type selection. To facilitate easier calculation you can now choose between U100 and U40 insulin syringes and then select a Unit count. PepCalc will automatically set the correct volume. No worries if you have a non-insulin syringe. You can pick tuberculin (non-insulin) from the dropdown to get complete control of the inputs.
• PepCalc has a memory! A common request we are excited to deliver - PepCalc now remembers the last values you entered. No more unnecessary retyping!
• Input bugs squashed. You can now enter numbers with or without leading zeros, i.e., .0 or 0.1 40.1.0 02/02/2021 Bug fixes and performance improvements for iOS 14. 3.0 09/28/2020 Minor iPad layout tweaks. 2.0 07/24/2020 1.0 07/22/2020
PepCalc: Peptide Calculator version 56.2
Updated At: 2026-07-24
Changes: Version History New! Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code. 56.2 Jun 25 Say hello to the Research tab. Your peptide reference, inside PepCalc.
Easier on the eyes: Brighter, more readable accent color in dark mode.
Share PepCalc: Share PepCalc with a friend from the More tab. 56.1 Jun 18 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.5 Apr 29 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.4 Apr 9 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.2 Mar 21 • Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping. 49.3 10/08/2023 • Saved protocols. Our most requested feature! You can now save your favorite reconstitution calculations for easy recall. No more unnecessary retyping.
• New app icon and design tweaks. We've given the app a fresh coat of paint. PepCalc now looks great on all phone and tablet sizes. 49.2 09/14/2023 Minor display tweaks and performance improvements 49.1 08/15/2023 Bug fixes and performance updates 48.1 02/19/2023 Multi-peptide Support
• Our most requested feature! Optionally add additional peptides to a vial and PepCalc will calculate and display the other amounts per dose.
Doses in Vial
• We now calculate and display the number of doses available in the vial.
Better Multi-dose Information
The number of syringes needed will show if the desired dose is greater than 1 full
syringe.
Dark/Light Modes
• Go to Info > Settings and choose Dark, Light, or Operating System color mode.
Squashed all the Bugs
• Fonts now scale correctly based on the text zoom level on your device.
• PepCalc looks great on all phone and tablet sizes. 46.1 10/16/2022 PepCalc is the easiest way to calculate accurate peptide doses. This release adds several features based on user feedback.
• Syringe type selection. To facilitate easier calculation you can now choose between U100 and U40 insulin syringes and then select a Unit count. PepCalc will automatically set the correct volume. No worries if you have a non-insulin syringe. You can pick tuberculin (non-insulin) from the dropdown to get complete control of the inputs.
• PepCalc has a memory! A common request we are excited to deliver - PepCalc now remembers the last values you entered. No more unnecessary retyping!
• Input bugs squashed. You can now enter numbers with or without leading zeros, i.e., .0 or 0.1 40.1.0 02/02/2021 Bug fixes and performance improvements for iOS 14. 3.0 09/28/2020 Minor iPad layout tweaks. 2.0 07/24/2020 1.0 07/22/2020
PepCalc: Peptide Calculator version 56.2
Updated At: 2026-06-29
Changes: Version History New! Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code. 56.2 3d ago Say hello to the Research tab. Your peptide reference, inside PepCalc.
Easier on the eyes: Brighter, more readable accent color in dark mode.
Share PepCalc: Share PepCalc with a friend from the More tab. 56.1 Jun 18 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.5 Apr 29 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.4 Apr 9 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.2 Mar 21 • Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping. 49.3 10/08/2023 • Saved protocols. Our most requested feature! You can now save your favorite reconstitution calculations for easy recall. No more unnecessary retyping.
• New app icon and design tweaks. We've given the app a fresh coat of paint. PepCalc now looks great on all phone and tablet sizes. 49.2 09/14/2023 Minor display tweaks and performance improvements 49.1 08/15/2023 Bug fixes and performance updates 48.1 02/19/2023 Multi-peptide Support
• Our most requested feature! Optionally add additional peptides to a vial and PepCalc will calculate and display the other amounts per dose.
Doses in Vial
• We now calculate and display the number of doses available in the vial.
Better Multi-dose Information
The number of syringes needed will show if the desired dose is greater than 1 full
syringe.
Dark/Light Modes
• Go to Info > Settings and choose Dark, Light, or Operating System color mode.
Squashed all the Bugs
• Fonts now scale correctly based on the text zoom level on your device.
• PepCalc looks great on all phone and tablet sizes. 46.1 10/16/2022 PepCalc is the easiest way to calculate accurate peptide doses. This release adds several features based on user feedback.
• Syringe type selection. To facilitate easier calculation you can now choose between U100 and U40 insulin syringes and then select a Unit count. PepCalc will automatically set the correct volume. No worries if you have a non-insulin syringe. You can pick tuberculin (non-insulin) from the dropdown to get complete control of the inputs.
• PepCalc has a memory! A common request we are excited to deliver - PepCalc now remembers the last values you entered. No more unnecessary retyping!
• Input bugs squashed. You can now enter numbers with or without leading zeros, i.e., .0 or 0.1 40.1.0 02/02/2021 Bug fixes and performance improvements for iOS 14. 3.0 09/28/2020 Minor iPad layout tweaks. 2.0 07/24/2020 1.0 07/22/2020
PepCalc: Peptide Calculator version 55.5
Updated At: 2026-05-31
Changes: Version History The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.5 Apr 29 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• WATER SOLVER: PepCalc can now solve backwards from your desired amount to calculate how much water to add.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.4 Apr 9 The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated. 55.2 Mar 21 • Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping. 49.3 10/08/2023 • Saved protocols. Our most requested feature! You can now save your favorite reconstitution calculations for easy recall. No more unnecessary retyping.
• New app icon and design tweaks. We've given the app a fresh coat of paint. PepCalc now looks great on all phone and tablet sizes. 49.2 09/14/2023 Minor display tweaks and performance improvements 49.1 08/15/2023 Bug fixes and performance updates 48.1 02/19/2023 Multi-peptide Support
• Our most requested feature! Optionally add additional peptides to a vial and PepCalc will calculate and display the other amounts per dose.
Doses in Vial
• We now calculate and display the number of doses available in the vial.
Better Multi-dose Information
The number of syringes needed will show if the desired dose is greater than 1 full
syringe.
Dark/Light Modes
• Go to Info > Settings and choose Dark, Light, or Operating System color mode.
Squashed all the Bugs
• Fonts now scale correctly based on the text zoom level on your device.
• PepCalc looks great on all phone and tablet sizes. 46.1 10/16/2022 PepCalc is the easiest way to calculate accurate peptide doses. This release adds several features based on user feedback.
• Syringe type selection. To facilitate easier calculation you can now choose between U100 and U40 insulin syringes and then select a Unit count. PepCalc will automatically set the correct volume. No worries if you have a non-insulin syringe. You can pick tuberculin (non-insulin) from the dropdown to get complete control of the inputs.
• PepCalc has a memory! A common request we are excited to deliver - PepCalc now remembers the last values you entered. No more unnecessary retyping!
• Input bugs squashed. You can now enter numbers with or without leading zeros, i.e., .0 or 0.1 40.1.0 02/02/2021 Bug fixes and performance improvements for iOS 14. 3.0 09/28/2020 Minor iPad layout tweaks. 2.0 07/24/2020 1.0 07/22/2020
PepCalc: Peptide Calculator version 55.2
Updated At: 2026-03-21
Changes: The "Unlimited & Customizable" update is here! We've listened to your feedback and completely overhauled PepCalc to make it the most powerful and flexible peptide research tool available.
What's New:
• UNLIMITED MIXES: You are no longer limited to one or two peptides. Mix as many peptides as your research requires in a single volume.
• CUSTOM NAMING: Say goodbye to "Peptide 1" and "Peptide 2." Give every peptide in your mix a custom name for perfect clarity.
• EXPANDED SCALE OPTIONS: We've simplified the unit picker with all standard 100-unit and 40-unit types, plus the ability to define your own non-standard custom scale types.
• 10x EASIER PROTOCOLS: The "Save Protocol" flow has been entirely rebuilt. It is now faster than ever to add, update, or rename your favorite calculations.
• FULL-SCREEN RICH NOTES: Protocol notes are no longer confined to a tiny box. Enjoy a full-screen interface with bold, italic, and underline formatting, plus an increased limit of 1,000 characters.
• AUTOMATIC UNIT CONVERSION: Switch between mcg, mg, and g in real time with our improved calculation engine.
• "UNDO" FUNCTIONALITY: Made a mistake? You now have a 7-second window to undo major actions, like clearing data or opening a saved protocol, via a simple in-app notification.
• THEMES GALORE: Express yourself with 5 new color schemes, each featuring native Light and Dark mode support that adapts to your device settings automatically.
• GLOBAL COMPATIBILITY: All inputs now seamlessly accept both commas and periods as decimal separators for our researchers worldwide.
Love PepCalc? Please consider leaving us a review! Your feedback is greatly appreciated.
PepCalc: Peptide Calculator version 49.3
Updated At: 2023-10-08
Changes: Oct 8, 2023
Version 49.3
. Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping.
PepCalc: Peptide Calculator version 49.3
Updated At: 2023-10-08
Changes: Oct 8, 2023
Version 49.3
• Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping.
PepCalc: Peptide Calculator version 49.3
Updated At: 2023-10-08
Changes: • Saved protocols. Our most requested feature! You can now name and save your favorite reconstitution calculations for easy recall, along with notes. No more unnecessary retyping.
PepCalc: Peptide Calculator version 48.1
Updated At: 2023-02-19
Changes: Feb 19, 2023
Version 48.1
Bug fixes and performance updates