CalculatorsDo the maths in a moment.
Calories, macros and one-rep max. Free, no sign-up.
Calorie calculator
How many calories you need a day to lose fat, maintain or build muscle.
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Protein, carbs and fat in grams, from your calories and goal.
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Your estimated one-rep max and the weights for each rep range.
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Your body mass index and the healthy weight range for your height.
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Your body fat percentage with a tape measure, plus fat and lean mass.
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Your pace per kilometre, speed and times for 5K, 10K, half and marathon.
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How much water to drink a day based on weight, exercise and heat.
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