1RM Calculator Strength Rank

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Everyone
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Everyone
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About this app

Estimate your one-rep max (1RM) from the weight and reps you complete in a set.

Enter your lift details during or after a workout to get a quick estimated 1RM without needing to test a maximal lift frequently.

See a strength classification and rank based on common standards to better understand your estimated strength.

Save your lifts and review past results whenever you want. Compare previous estimates over time to follow changes in your strength.

Built for lifters who want a simple strength calculator instead of a full gym tracker.
Calculate your 1RM and understand your strength.
Updated on
Apr 29, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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