Finance
BMI Calculator
Estimate body mass index from US or metric height and weight inputs.
About this bmi calculator
Use this BMI calculator as a quick educational estimate from height and weight. It is not a medical diagnosis.
Mavis Tools is built for quick utility work: paste the input, get the result, and move on. The page is static-first for speed, and the interactive work happens in your browser. That makes it useful for drafts, calculations, debugging snippets, and repeat everyday tasks.
This tool is intentionally focused. It does one job clearly instead of asking for an account or hiding the result behind a long workflow. Bookmark it if you need a fast BMI calculator that works on desktop and mobile.
FAQ
Is BMI medical advice?
No. BMI is a general screening estimate and not medical advice.
Can athletes have misleading BMI?
Yes. Muscle mass and body composition can make BMI less useful for some people.
Which units are supported?
Enter height in inches and weight in pounds for the first version.