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BMR calculator

Estimate the energy your body uses at rest with the Mifflin–St Jeor equation.

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1,401.5kcal

Estimated energy at rest

General estimates for adults aged 20–100, not medical advice. These tools are not intended for pregnancy, breastfeeding, children, or clinical nutrition planning.

How this calculator works

Mifflin–St Jeor estimates resting energy: 10 × weight (kg) + 6.25 × height (cm) − 5 × age + a sex coefficient (+5 male, −161 female). This estimate is commonly used as BMR in calorie calculators.

BMR covers energy at rest; it does not include daily movement, exercise or digestion. Use the TDEE calculator to include activity.

Source: Mifflin et al., 1990, resting energy expenditure equation