BMI Calculator

Calculate body mass index from height and weight.

● Runs locally in your browser. No file or text uploads.

Understand the formula

For 80 kg and 180 cm, BMI is 80 ÷ 1.8², or about 24.7. Height must be entered in centimeters.

When to use it

Use only as an arithmetic screening value. It does not describe body composition or provide personalized health advice.

About this tool

Calculate body mass index from height and weight. Use it without creating an account. Results are available immediately, and inputs are not saved between visits.

Does this send my input to a server?

Inputs are processed locally. Optional Analytics sends page statistics only after consent; tool inputs and files are excluded.