Basal metabolic rate
BMR Calculator
See how many calories your body burns at complete rest, compared across the three most-used scientific formulas.
Your BMR
1,783kcal/day
Calculated with Mifflin-St Jeor
Formula comparison
Mifflin-St Jeor
Most accurate for most people (1990)
1,783 kcal
Harris-Benedict (revised)
Classic formula, tends to run slightly high
1,865 kcal
Katch-McArdle
Add body fat % to see this
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Your BMR is only what you burn lying still. With your activity, you burn about 2,763 kcal/day.
Calculate your full TDEE →BMR vs TDEE
BMR is the energy your organs need to function. TDEE adds everything else: digesting food (about 10%), daily movement like walking and standing, and exercise. That's why TDEE is always higher — typically 1.2× to 1.9× your BMR.
Mifflin-St Jeor (men): 10W + 6.25H − 5A + 5
Mifflin-St Jeor (women): 10W + 6.25H − 5A − 161
Harris-Benedict (men): 13.397W + 4.799H − 5.677A + 88.362
Harris-Benedict (women): 9.247W + 3.098H − 4.330A + 447.593
Katch-McArdle: 370 + 21.6 × lean mass
W = weight in kg, H = height in cm, A = age in years
BMR FAQ
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TDEE calculator →
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Maintenance calories calculator →
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Calorie deficit calculator →
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Macro calculator →
Protein, carbs and fat in grams
TDEE vs BMR →
Which calorie number to use
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A safe daily target from your TDEE
TDEE for women →
Maintenance calories using the female formula
TDEE for men →
Maintenance calories using the male formula
How to calculate TDEE →
The formula step by step, with worked examples