One Rep Max Calculator
one_rep_max_calculatorRead-onlyIdempotent
Free one rep max calculator: estimate your 1RM for bench press, squat or deadlift from any weight and reps using the Epley, Brzycki and Lombardi formulas. Web page: https://calcbright.com/one-rep-max-calculator
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| reps | No | Reps completed (reps) Most accurate with 2–10 reps taken close to failure. | |
| unit | No | Unit | kg |
| weight | No | Weight lifted |