One Rep Max (1RM) Calculator

Estimate one-rep maximum for any lift from submaximal repetition testing. Epley, Brzycki, Lander, and O'Conner formulas with comparison and training percentage table.

Core Tools

Distance covered in 12 minutes (meters)

🏅 Sports Note: These calculators provide estimates based on population data and validated formulas. Individual results vary by physiology, training level, and testing conditions. Consult a qualified coach or sports scientist for personalized guidance.

How It Works

Estimate one-rep maximum for any lift from submaximal repetition testing. Epley, Brzycki, Lander, and O'Conner formulas with comparison and training percentage table

Each component has a specific meaning:

Submaximal repetition testing — The submaximal repetition testing recorded for the patient or scenario being assessed.

Note: Interpret the 1rm calculator result against the clinical thresholds and context described above.

How to Use

Enter the submaximal repetition testing for the patient or scenario you are assessing. Estimate one-rep maximum for any lift from submaximal repetition testing. Epley, Brzycki, Lander, and O'Conner formulas with comparison and training percentage table. Use the 1rm calculator result to inform your clinical assessment.

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Frequently Asked Questions