Rep Check - 1RM Calculator

No two workouts should ever be the same. To maximize muscle growth you must avoid performing the same rep range and number of sets for an exercise workout after workout. Substituting heavy weight or high volume training in your routine stimulates growth by breaking a pattern your muscles have gotten used to.

Rep Check enables athletes to easily change training volume for an exercise by reporting personalized lift estimates for every rep range.

Rep Check is the most powerful and beautiful completely ad free material 1RM calculator on the app store. Change the way you workout now!


Shock your muscles - Change up your training volume:
• Quickly get estimates on performance so you can easily change your workouts and avoid plateauing.

Benchmark future workouts:
• Save your personal best lifts for reference

Personalize your results:
• Choose one of 11 different formulas
• Customize bar weight, plate type and units.

Stay focused:
• Get Olympic and Classic plate configurations for any weight and any size bar.


Example: Many bodybuilders bench press 3 sets of 10. To stimulate additional growth, body builders should occasionally bench press lower rep ranges which can be calculated using their 10 rep working weight. After performing several sets of low reps at heavy weight, athletes can then find a weight to use for higher rep ranges using the same results they calculated earlier. One Rep Max calculators can be used for much more than getting your 1RM!

1RM Calculators aren't just for bodybuilders. Power lifters, cross fitters and other athletes that train with weights can benefit from 1RM calculators!


Note: One Rep Max calculators are great tools for estimating your weight lifting performance for any rep range. Never exercise alone or without taking proper safety precautions. Use your best judgement when exercising.