Home / Comparison calculators / Mass / One rep max Epley

One rep max Epley

This calculator estimates one-rep max using the Epley formula.

MassCalculatorOnline

Enter values

1RM, kg
—

Formula

1RM = weight × (1 + reps / 30)

What this calculator does

This calculator estimates one-rep max using the Epley formula.

How to use

  1. Enter values in the fields.
  2. Click Calculate.
  3. Check the result below the form.

FAQ

Is the formula real?

Yes, this tool uses a real formula for this calculation.

Are data sent to the server?

No, calculation runs in the browser.

Report an error