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One Rep Max

1-Rep Max Calculator

What is a one rep max calculator?

It’s a tool that estimates the maximum weight you can lift for one repetition based on a weight you can lift for multiple repetitions.

How is a one rep max calculator (used)?

You input the weight you lifted and the number of reps you completed at that weight. The calculator then provides an estimated 1RM.

How accurate is a one rep max calculator?

They provide a close estimate, but they are not perfectly accurate. Actual performance depends on factors like fatigue and lifting technique.

Are one rep max calculators accurate?

They are reasonably accurate for estimating your strength level, but your actual 1RM might be slightly higher or lower. Use it as a training guide.

How to calculate one rep max (using the tool)?

Enter a submaximal weight and the number of successful reps you performed with it.

How to calculate your one rep max (in general)?

You can either use a calculator or attempt a maximal lift in the gym with proper spotting and warm-up.