Fitness & health
Calorie Calculator (BMR & TDEE)
Your basal metabolic rate (BMR) is what your body burns at complete rest. Multiply by your activity and you get your total daily energy expenditure (TDEE) — the number to eat around.
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Health, fitness and nutrition content on this site is general information, not medical advice. Talk to a qualified professional about your own situation.
How this is worked out
Mifflin–St Jeor: BMR = 10 × kg + 6.25 × cm − 5 × age + 5 (men) or − 161 (women). TDEE = BMR × activity factor (1.2 to 1.9). Targets: a 500 kcal daily deficit is roughly 0.45 kg a week; we never suggest going below 1,200 kcal (women) or 1,500 kcal (men) without medical supervision.
Questions people ask
How accurate is this?
Mifflin–St Jeor is within about 10% for most people. Track your weight for three weeks and adjust by 100–200 kcal if it is not moving as expected.