BMI Calculator
Find your Body Mass Index using metric or imperial measurements.
Your BMI
22.9
Category
Healthy weight
1518.5253040
Runs in your browser. Nothing you enter is sent or stored.
How it works
BMI = weight in kg ÷ (height in m)². Imperial values are converted to metric first. Adult categories (WHO): under 18.5 underweight, 18.5–24.9 healthy, 25–29.9 overweight, 30+ obesity.
Example
Someone who is 175 cm tall and weighs 70 kg has a BMI of 22.9, a healthy weight.
Frequently asked questions
Is BMI accurate for everyone?
BMI is a rough screening measure. It does not distinguish muscle from fat and is not designed for children, pregnant people or athletes.
Can children use this?
Children and teens need age- and sex-specific percentiles. This calculator uses adult categories.
Is my data stored?
No. Everything is calculated in your browser.