What is a normal BMI range?

The WHO puts the normal range at 18.5–24.9. Asia-Pacific guidance often treats 18.5–22.9 as normal and 23 or above as overweight.

Is BMI inaccurate for muscular people?

Yes. BMI does not distinguish muscle from fat, so a very active person can read higher than their body composition suggests. Treat it as a rough indicator only.

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BMI Calculator (Body Mass Index)

Calculate your adult Body Mass Index (BMI) and health classification based on height and weight.

Height (cm)

Weight (kg)

Your BMI Score

22.9

Normal weight

WHO International Standard Classification

Reading your BMI

Body Mass Index is weight in kilograms divided by height in metres squared — a quick way to see where your weight sits relative to your height. Enter height and weight to get the BMI value, the category it falls in and the corresponding healthy weight range.

How to use it

Enter your height and weight.
Read the calculated BMI and its category.
Compare against the healthy weight range shown.

Frequently asked questions

What is a normal BMI range?: The WHO puts the normal range at 18.5–24.9. Asia-Pacific guidance often treats 18.5–22.9 as normal and 23 or above as overweight.
Is BMI inaccurate for muscular people?: Yes. BMI does not distinguish muscle from fat, so a very active person can read higher than their body composition suggests. Treat it as a rough indicator only.