BMI Calculator
Body Mass Index from height and weight with category.
Frequently asked questions
What does the BMI Calculator do?
Body Mass Index from height and weight with category. Enter your values and get an instant estimate in your browser — free, with no signup.
Is the BMI Calculator free to use?
Yes. OpenCalcy calculators are free to use, work on mobile, and keep favorites privately in your browser.
How is the BMI Calculator calculated?
It uses this formula: BMI = kg / m²