Pop in your height and weight and get your BMI instantly, mapped to the standard WHO categories — no app, no sign-up.
Private files stay in your browser. AI prompts you send leave your device.
Yes. BMI Calculator is completely free, with no sign-up, no daily limit, and no watermark on what you download.
No. BMI Calculator runs entirely in your browser using JavaScript — nothing you type or upload ever leaves your device.
The calculation uses the standard formula for this figure, so the result is exact for the numbers you enter — always double-check the inputs, since the output is only as accurate as what you type in.
