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GYM & FITNESS

1-Rep Max Calculator

Estimate your one-repetition maximum from the weight and repetitions you can currently perform.

Estimated 1RM
Enter your details to calculate.

How it works

Estimate your one-repetition maximum from the weight and repetitions you can currently perform. Results are estimates for planning and training.

Training estimate only. Use sensible loads, warm up appropriately and adjust for your own experience and condition.