BMI Calculator

Metric & Imperial Units
Auto-convert between units
cm
in
kg
lb

FAQ

What is BMI?
BMI (Body Mass Index) is an internationally used indicator to measure obesity using height and weight. The formula is weight(kg) ÷ height(m)².
How do I interpret BMI values?
Below 18.5 is underweight, 18.5-24.9 is normal weight, 25-29.9 is overweight, and 30 or above is obese. However, since BMI doesn't consider muscle mass, it's best used as a reference indicator.
Do you support both metric and imperial units?
Yes, this calculator supports both metric (cm, kg) and imperial (feet, inches, pounds) units. You can automatically convert between units with the toggle button.