How to use the BMI Calculator
- Enter your values
- Results update instantly
- Review the detailed breakdown
About the BMI Calculator
Calculate your BMI, see your weight category and the healthy weight range for your height.
Instant resultsEverything updates live as you type. No buttons to wait on.
PrivateYour input never leaves your browser and is never stored.
Free foreverNo signup, no limits and no paywall.
Works offlineInstall the site as an app and use it anywhere.
BMI Calculator FAQ
Is BMI accurate for everyone?
BMI is a quick screening measure. It does not distinguish muscle from fat, so athletes, older adults and pregnant people should consult a healthcare professional.
Is the BMI Calculator free?
Yes, it is 100% free with no signup, no watermarks and no usage limits.
Is my data private?
Yes. Everything is calculated in your browser. Nothing you type is sent to or stored on a server.
Does it work on phones and tablets?
Yes. The tool works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.