BMR Calculator

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Estimate how many calories your body burns at rest each day.

How the calculation works

The calculator uses the Mifflin-St Jeor equation, a widely used estimate of basal metabolic rate based on sex, age, weight and height.

Formula used

Men: BMR = 10 × weight (kg) + 6.25 × height (cm) − 5 × age + 5; Women: same but − 161 instead of + 5

Example

A 30-year-old man who is 70 kg and 170 cm tall has a BMR of about 1,618 calories per day.

Frequently asked questions

What does BMR include?

The energy your body needs for basic functions like breathing and circulation at rest.

Is this exact?

No. It is an estimate and real values vary between people.

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Results are estimates for general information only and are not professional financial, medical or legal advice.