Free & Science-Based

Free Fitness Calculators & Tools

Accurate, science-based calculators to help you track progress, set goals, and optimize your fitness journey. All tools are free and easy to use.

Featured Calculators

Our most popular fitness tools to help you reach your goals

alculate calories burned during weightlifting workouts based on exercises, sets, reps, and body composition

Calculate daily energy expenditure with nutrition recommendations

Calculate Body Mass Index and weight category with health recommendations

Generate progressive warm-up sets with optimal weight progression for any lift

Measure cardiovascular fitness using Cooper Test, Rockport Walk, and heart rate methods

Estimate squat 1RM using multiple formulas with bodyweight and variation adjustments

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