BMI Calculator
Calculate your Body Mass Index with metric or imperial units and see which WHO category you fall into.
Your BMI
24.5
Category (WHO)
Normal weight
Formula
BMI = weight(kg) ÷ height(m)²How to use the BMI Calculator
- 1Choose metric (kg/cm) or imperial (lb/ft-in)
- 2Enter your height and weight
- 3Read your BMI and category
Frequently Asked Questions
What is a healthy BMI?
The WHO healthy range is 18.5–24.9. Below 18.5 is underweight; 25–29.9 is overweight; 30+ is obese.
Is BMI accurate for athletes?
Not always — BMI doesn't distinguish muscle from fat, so muscular people can score 'overweight' while being lean. Pair it with body-fat and waist measurements.