Calorie Calculator

Estimate your daily calorie needs using the Mifflin-St Jeor equation. See the calories to maintain, lose, or gain weight based on your activity level.

Sex

Age (years)

Height (cm)

Weight (kg)

Activity level

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BMR

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Maintain

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Lose (−0.5kg/wk)

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Gain (+0.5kg/wk)

How it works

BMR (Basal Metabolic Rate) is the calories your body burns at rest. Multiplying BMR by an activity factor gives your maintenance calories (TDEE). To lose about 0.5 kg/week, eat ~500 fewer calories/day; to gain, eat ~500 more.

Is this medical advice?

No. These are general estimates. Consult a doctor or dietitian before major diet changes.