Free fitness calculators
Know your numbers in seconds
Simple, free calculators for anyone who trains: find your BMI, how many calories and how much protein you need, and how much you could lift for one rep. Works in kg or pounds.
- BMI calculatorCheck your body mass index and healthy weight range.Open calculator →
- Calorie calculatorCalories a day to maintain, lose fat or build muscle.Open calculator →
- Protein calculatorGrams of protein a day for your goal.Open calculator →
- One rep max calculatorEstimate your 1RM and training weights.Open calculator →
These numbers are estimates for healthy adults, not medical advice. If you have a health condition, are pregnant or are under 18, speak to a doctor first.
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