1 Rep Max Calculator and Log

Contains adsIn-app purchases
4.9
5.15K reviews
100K+
Downloads
Content rating
Everyone
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About this app

1 Rep Max Calculator is a must have app for every weight lifter. It calculates the maximum weight that you can lift for 1 repetition given information that you already know. Just enter the weight and reps that you were previously able to achieve and let the calculator do the rest! It can also be used to calculate the percentages of your one rep max and your Wilks Score.

This app is designed for bodybuilding and powerlifting, so it's important to track your progress. Log your best 1 rep max records using the built in log feature. Add exercises and log new records to watch your strength grow over time.

Need help determining which weights to put on the bar? Simply tap on any weight in the app to view the plate loader calculator. It will let you pick which weights you have available and the bar type you're using.

Trying to keep track of changes in your body weight? 1 Rep Max Calculator allows you to track your body weight and view the change over time. You can even set a goal body weight.

There are many 1 Rep Max formulas to choose from: Epley, Brzycki, Lombardi, Mayhew, McGlothin, OConner, Wathan. You can choose just a single formula or get an average of the ones you select.

This exact app isn't available for iOS or Web, but there is a light version here: https://www.onerepmaxcalc.com/
Updated on
Jul 29, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Financial info and 3 others
This app may collect these data types
Location, Financial info and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.9
5.03K reviews
bronson chambers
June 23, 2020
This app is exactly what I wanted. Calculate 1 rep maxes and percentages quick and easy. Makes conjugate setup much easier. Being able to track maxes is a must with conjugate and an awesome addition to the app. The plate calculator is nice as well. Only thing that would make it better is to save multiple bars and set what plates you have to work with.
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