Estimate your maximum strength using scientifically-validated formulas.
Lifting Data
kg
Strength Analysis
Enter weight and reps to see your max.
Overview
One-rep max (1RM) is the maximum weight you can lift for a single rep. Estimating it helps in designing effective training programs without the risk of maxing out frequently.
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Pro Tips
Formulas are most accurate for sets of 3-5 reps.
Above 10 reps, the estimation becomes less reliable.
Ensure you use a spotter when testing near-maximal loads.
Rest adequately between sets for consistent performance.
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Fun Facts
"The Epley formula was developed for the Nebraska Cornhuskers football team."
"At 10 reps, the Epley and Brzycki formulas typically converge."
"Lombardi's formula uses a logarithmic approach to strength estimation."
