Free BMR Calculator

BMR / Calorie

BMI · ideal weight · how much to eat

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Gender

Age (years)

Weight (kg)

Height

Feet

Inches

Activity level

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BMI

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Ideal weight

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BMR

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kcal at rest

Maintenance

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kcal to stay same

You should eat about

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kcal per day

Maintain weight same —

Mild weight loss eat less —

Steady weight loss eat less —

Mild weight gain eat more —

Steady weight gain eat more —

Mifflin–St Jeor formula + WHO BMI ranges. About 7700 kcal ≈ 1 kg body fat. Estimates only — not medical advice.