COSports - Tools

One Rep Max Calculator

Enter the amount of weight you work out with on the Bench Press and the number of reps you normally do (e.g. 225 lbs at 10 reps). From this data we can calculate what Your One Rep Max would be. This is useful for those who prefer not to risk injury Maxing out. The calculation uses the "Brzycki Formula" to predict the 1 rep max on Bench Press.

Enter Weight Lifted (lbs)
Enter number of Reps

One Rep Max - Result