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1rm.dev

Epley

Equation
1RM = w × (1 + r / 30)
Variables
w
Load lifted, same unit as the 1RM.
r
Repetitions completed.
1RM
Estimated one-repetition maximum.
Year
1985
Authors
Epley, B.
Source
Boyd Epley Workout, Body Enterprises
DOI
None
Notes
Originally published as a poundage chart in Boyd Epley’s workout materials (Lincoln, NE).

Estimate a 1RM