One Rep Max (Epley Formula)

Tunnetaan myös nimellä: 1RM Formula, Epley Formula, Max Lift Estimation

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

1RM = weight × (1 + reps/30)

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Estimates the maximum weight you could lift for a single repetition based on a submaximal lift. Most accurate when reps are between 2 and 10.

Symboli	Nimi	Yksikkö	Kuvaus
1RM	One Rep Max	lbs/kg	Maximum weight you can lift once
w	Weight	lbs/kg	Weight lifted
r	Reps	—	Number of repetitions performed

11RM = 185 × (1 + 8/30)

21RM = 185 × 1.267 = 234 lbs

Tulos: ~234 lbs

Less accurate above 10 reps

Different formulas (Brzycki, Lander) may give slightly different results

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