BMI Calculator

Your weight. Your height. Your BMI, the Body Mass Index. Information only, never a diagnosis.

What does BMI mean?

BMI means Body Mass Index. It is a number that compares your weight to your height: your weight in kilograms, divided by your height in metres squared. In French, it is called IMC (Indice de masse corporelle).

Your BMI:

Standard interpretation

BMICategory
Under 18.5Underweight
18.5 to 24.9Normal weight
25 to 29.9Overweight
30 and aboveObesity

Information only. BMI is a general guide: it does not take muscle mass, age, or other health factors into account, and it does not replace medical advice.

Example

70 kg at 1.75 m: 70 ÷ (1.75 × 1.75) = 22.9, in the normal weight category.

Frequently asked questions

What does BMI mean?

BMI means Body Mass Index. It is a number that compares your weight to your height.

How do you calculate your BMI?

Divide your weight in kilograms by your height in metres squared.

What do the BMI categories mean?

Under 18.5: underweight. 18.5 to 24.9: normal weight. 25 to 29.9: overweight. 30 and above: obesity. BMI is a guide, not a diagnosis.

Read the BMI guide →

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