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Estimate Your One-Rep Max (1RM)
Formula
Your one-rep max (1RM) is the maximum weight you can lift for a single repetition with proper form. It is a key benchmark for measuring strength and programming training loads.
Rather than testing a true 1RM (which carries injury risk), you can estimate it from a submaximal set. The Epley and Brzycki formulas are most accurate for sets of 2-10 reps.
Common use cases:
- Programming strength training percentages
- Tracking strength progress over time
- Setting lifting goals
Frequently Asked Questions
Maria Gonzalez
Registered Dietitian, RD, MPH
Maria is a Registered Dietitian with a Master's in Public Health. She focuses on evidence-based nutrition assessment tools including BMI, calorie calculations, and body composition analysis.
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