BMI Calculator

Calculators 100% in-browser Popular

Enter your height and weight to calculate your Body Mass Index and category.

Height (cm)

Weight (kg)

Height (ft)

(in)

Weight (lb)

Your BMI

How to use the BMI Calculator

Body Mass Index estimates body fat from height and weight and sorts it into ranges. It is a quick screening tool, not a diagnosis.

This calculator supports metric and imperial units and computes everything in your browser — your measurements are never uploaded.

What is a healthy BMI?

A BMI between 18.5 and 24.9 is generally considered normal for adults.

Is BMI accurate for everyone?

It is a rough guide; it does not account for muscle mass, age or body composition.

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Age Calculator Enter your date of birth to see your exact age in years, months and days, plus a countdown to your next birthday.

Unit Converter Convert between units of length, weight and temperature instantly.