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You are here: Home HPRC Blog One-Rep-Max calculator

Filed under: Weight lifting

One-Rep-Max calculator

Use this easy tool to determine your one-repetition maximum before you begin a strength-training program.

Part of a comprehensive fitness program involves improving your muscular strength and endurance. One way to figure out how much weight you should be lifting is to determine your one-repetition maximum (1RM). The American College of Sports Medicine recommends lifting 8–12 repetitions of 60-80% of a person’s 1RM to improve muscular strength and endurance. However, doing a 1RM test isn’t always feasible or safe if you don’t have someone to spot you. Instead, try using this this quick-and-easy calculator to estimate what your 1RM should be for a given exercise.

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