BMR Calculator

Calculate your BMR or base metablic rate based on your weight, height, age and gender.

What is BMR ?

The BMR (or Basal Metabolic Rate) is an estimate of the daily caloric need for the functioning of the body at rest. In other words, it is the amount of calories the body needs every day to perform vital functions including heart, lungs, nervous system, etc.

How to calculate BMR ?

To calculate BMR, we've choosen the Schofield formula (used by WHO, World Health Organization). The formula is as follows (weight is expressed in kg):

- For a man

Between 10 and 17 years: 17.686 x weight + 658.2
Between 18 and 29 years old: 15.057 x weight + 692.2
Between 30 and 59 years: 11.472 x weight + 873.1
Over 60 years: 11.711 x weight + 587.7

- For a woman

Between 10 and 17 years: 13.384 x weight + 692.6
Between 18 and 29 years old: 14.818 x weight + 486.6
Between 30 and 59 years old: 8.126 x weight + 845.6
Over 60 years: 9.082 x weight + 658.5

What is the BMR used for ?

Estimating BMR is an important step in estimating your daily caloric requirements.

Indeed, BMR estimates the daily caloric need for the functioning of the body at rest. It gives you an idea of the minimum amount of calories you need. In order to estimate your overall caloric needs, you must add to the BMR, the caloric needs related to your level of activity: physical mobility, nature of your work, sports, etc.

In practice, there are tables with multiplicative coefficients that let you switch from BMR to the overall daily caloric need according to gender and activity level.