One-rep Max Calculator

Free one-rep max calculator for one rep max calculator. Enter the values below to get an instant result.

JavaScript is required for live calculation.

You can still read how One-rep Max Calculator works, the formula, examples, and FAQs below.

Weight lifted
Reps

Inputs

Weight lifted

Reps

Results update when you click Calculate.

estimated 1RM

7.0000

Estimate one-rep max

(weight_lifted) / (reps || 1)

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Recently used

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What this result means

Free one-rep max calculator for one rep max calculator. Enter the values below to get an instant result. Estimate one-rep max: (weight_lifted) / (reps || 1).

Assumptions

Rule dependency: Universal formula.

How it works

Estimate one-rep max: (weight_lifted) / (reps || 1).

Example

Example: “one rep max calculator”. Enter your values and click the button to get a result.

Frequently asked questions

What does this one-rep max calculator do?+

It helps you estimate one-rep max. Typical search: “one rep max calculator”.

How should I read the result?+

Estimate one-rep max using weight lifted; reps. Result: estimated 1RM.