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Your basal metabolic rate is usually 60% to 70% of the calories you burn in a day, which is why rest matters more than most workouts.
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Pick your sex and enter your age, height and weight.
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Add your body fat percentage if you know it, to see the Katch-McArdle result.
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Compare the formulas, then turn BMR into a daily target with the TDEE calculator.
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Mifflin-St Jeor (1990): 10 × kg + 6.25 × cm − 5 × age, then +5 for men or −161 for women.
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BMR is energy at complete rest.
Calculate your basal metabolic rate with Mifflin-St Jeor, revised Harris-Benedict and Katch-McArdle, side by side, with the math shown for your numbers.
Tap below for the full page. Not medical advice; talk to your clinician about your care.