Health & Fitness
Intermediate

One-Rep Max (Epley)

Estimated maximum single-lift weight.

Formula

1RM=w(1+r30)1RM = w\left(1 + \frac{r}{30}\right)

Variables

wWeight lifted
rReps performed

Example

100kg × 5 reps ⇒ 117kg

Did You Know?

Lifters estimate their one-rep max from lighter sets, avoiding the injury risk of an all-out attempt.

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