ONE RM CALCULATOR
Brzycki: 1RM = W x (36 / (37 - R)) Epley: 1RM = W x (1 + 0.0333 x R) Lander: 1RM = (100 x W) / (101.3 - 2.67123 x R) Lombardi: 1RM = W x R0.1 Mayhew et al.: 1RM = (100 x W) / (52.2 + (41.9 x e-0.055 x R)) O'Conner et al.: 1RM = W x (1 + 0.025 x R) Wathan: 1RM = (100 x W) / (48.8 + (53.8 x e-0.075 x R))