Free health and fitness calculators
Work out how many calories you need, check your BMI and body fat, and plan a realistic route to a healthy weight. Every calculator uses published formulas and explains what your numbers mean. They are a starting point, not medical advice.
Calorie Calculator
Find your daily calories to lose, maintain or gain weight, with a protein, carb and fat split.
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BMI Calculator
Check your body mass index, what it means and the healthy weight range for your height.
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Keto Macro Calculator and Meal Plan
Get your keto net carbs, protein and fat, then a 7 day keto meal plan you can shuffle.
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Weight Loss Calculator
See your daily calorie target, a safe weekly pace and the date you can reach your goal weight.
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Ideal Weight Calculator
Compare four medical formulas with the healthy BMI range to find a realistic weight for your height.
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Body Fat Calculator
Estimate your body fat percentage at home with a tape measure, using the US Navy method.
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