Weight Lifting - Finding Your One Rep Maximum

This free one rep max calculator for weight lifting allows you to calculate your theoretical 1 rep max, based on how much weight you've used before.

Just enter the amount of weight you did, and the number of reps you did. It will estimate how much you could lift once. This is only an estimate -- use common sense and don't try to lift a certain amount of weight based on this estimate! Always use a spotter!


**Note** - Please be patient while the calculator loads.

You will need java software to use the fitness calculators on this site. You can download it for free at: www.java.com.