To calculate the number of repetitions with a certain weight online calculator


The online calculator will help you calculate the number of repetitions with a certain weight (calculated according to the formula Matt Brzycki).
Find out the approximate number of repetitions that you can do with a certain weight, provided that you know in advance your maximum weight in one repetition.

Indicate the maximum weight of the bar in one repetition (kg):

Indicate the planned weight (kg):


The predicted number of repetitions: