Best Injection Calculator Apps

225+ iOS apps curated and reviewed

4.6 avg rating
17 free apps
Updated June 2026

Every iPhone needs a few good injection calculator apps. We benchmark 225+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Injection Calculator

Peptide Calculator: PepCalc#1

Peptide Calculator: PepCalc by David Dzeveckij

Dosage & Reconstitution Tool
Editor's Choice
πŸ₯ Medical
5.0(9 ratings)
Free
Peptide Calculator: PepCalc screenshot 1
Peptide Calculator: PepCalc screenshot 2
Peptide Calculator: PepCalc screenshot 3

Get fast and accurate results for your peptide mixing and injection needs with this dedicated calculator. Enter your desired dose, peptide amount, and reconstitution volume to instantly determine the precise injection volume and avoid costly errors.

NurseCalcs#2

NurseCalcs by James Crate

Calculations for Nurses
Strong Contender
πŸ”§ Utilities
4.0(4 ratings)
Free
NurseCalcs screenshot 1
NurseCalcs screenshot 2
NurseCalcs screenshot 3
NurseCalcs screenshot 4

This application provides a calculator for nursing unit conversions, allowing users to quickly calculate medication dosages based on patient weight and medicine concentration. It helps nurses make accurate calculations efficiently, and they can start using it now to streamline their workflow.

Nject#3

Nject by Keaton Benning, LLC

Injectable Information Center
Worth Considering
πŸ₯ Medical
4.0😐(124 ratings)
$4.99
#14in Medical
Nject screenshot 1
Nject screenshot 2
Nject screenshot 3
Nject screenshot 4
Nject screenshot 5

A handy tool for calculating injectable dilutions with various syringe options from 0.30mL to 1mL. Stay tuned for upcoming Crash kits and a learning center feature!

What We Love

  • πŸ‘ User-friendly and simple interface
  • 🎯 Accurate dosing calculations for toxin injections
  • πŸ“± Visual syringe markings aid learning
  • πŸš€ Quick and efficient dosage conversions

Room to Improve

  • πŸ› App crashes when selecting syringes
  • πŸ› Syringe dropdown menu shows 'no data' or won't populate
  • πŸ› Screen doesn't scroll to access calculate button

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