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Most calorie calculators use the same 1990 formula, then multiply it by a guess about how active you are. That guess drives most of the difference between them.
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Pick your sex and enter your age, height and weight (switch to Metric if you prefer kg and cm).
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Choose the activity level that matches a typical week, not your best week.
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Add your body fat percentage if you know it; the tool then switches to the Katch-McArdle formula.
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Without a body fat number, the tool uses the Mifflin-St Jeor equation , the formula most dietitians use for adults: Men: 10 × weight (kg) +…
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Activity level Multiplier Sedentary: desk job, little exercise 1.2 Light: exercise 1 to 3 days a week 1.375 Moderate: exercise 3 to 5 days…
Find your total daily energy expenditure in seconds, plus calorie targets to lose, keep or gain weight. Every formula is shown with your numbers.
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