basic

Deadlift One-Rep Max (Epley) Calculator

1RM = w × (1 + r/30) — estimate max from submaximal lift.

Estimates one-repetition maximum (1RM) for the deadlift (or any barbell lift) using the Epley formula from a submaximal weight and reps performed.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

1RM = weight × (1 + reps / 30)

In depth

Estimates one-repetition maximum (1RM) for the deadlift (or any barbell lift) using the Epley formula from a submaximal weight and reps performed.