oneRM - 1 rep max calculator app for iPhone and iPad

oneRM helps you to calculate your 1 Repetition Maximum from 2-20 max effort performed Repetitions. It uses most common formulas to estimate your 1RM.

Go grab a Barbell and try it in your Gym or your local CrossFit Box

Highlights:
- Simple modern User Interface
- 1 RM calculation
- Custom exercises
- Logbook
- Listview: 5-3-1 basic Wendler training
- Listview: 1RM to 15RM
- Listview: 125% - 40% of your 1RM weight
- 2 Wendler Percentage Options / use 90% of 1RM Option
- Imperial and Metric weight unit

Formulas to choose from:
- Epley
- Brzycki
- Lander
- Lombardy
- Mayhew et al.
- OConner et al.
- Wathen

default exercises:
- Benchpress
- Deadlift
- Front Squat
- Back Squat
- Overhead Squat
- Strict Shoulder Press / Military Press

Safety precautions
The calculations performed in oneRM are based on validated formulas, still they can be only estimations of the real weight you might be able to handle and should be used as a guidance. Measuring your 1RM can put your body under great stress, so be sure to perform it under safe conditions.
Studies revealed that no more than 10 repetitions should be used in linear equations to estimate your 1RM.
We included the possibility to calculate your 1RM also for 10 to 20 repetitions, please be aware that any 1RM calculation that result from values over 10 repetitions can only be considered as rough estimation.

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