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๐Ÿ‹๏ธOne Rep Max Calculator

Estimate the most weight you can lift for one rep.

1 1,000
1 30

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About this calculator

Free One Rep Max Calculator โ€” estimate your 1RM from the weight lifted and repetitions performed.

How to use

Enter your Weight Lifted, Repetitions above โ€” the result updates instantly as you type or drag the sliders. It's free and needs no sign-up.

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