Epley formula
1RM = weight × (1 + reps ÷ 30). It is most accurate for sets of 10 reps or fewer.
Frequently asked questions
Should I test my real max?
Only with a spotter and good warm-up. The estimate is safer for planning training loads.
One Rep Max Calculator
Estimate the most you could lift once from a set of reps.
Your details
Estimated 1RM
116.7
Formula
Epley