BMI Calculator

Calculate your Body Mass Index (BMI) and see which weight category you fall into. Includes a healthy weight range for your height.

Units

Weight (kg)

Height (cm)

Your BMI

24.2

How it works

BMI = weight (kg) ÷ height (m)². WHO categories: underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), obese (≥30).

BMI is a screening tool — it does not measure body fat directly and may not suit athletes or elderly adults.

Estimate basal metabolic rate and daily calorie needs.

Estimate body fat percentage using the U.S. Navy method.

Estimate a healthy target weight based on height and sex.

Estimate daily water intake based on weight and activity.