BMI Calculator
Calculate Body Mass Index with metric or imperial units.
About the BMI Calculator
The BMI Calculator works out your Body Mass Index from height and weight in either metric or imperial units and tells you which standard category the result falls into. BMI is a quick screening number, not a full health assessment, but it is a useful starting point.
Frequently asked questions
BMI is a quick screening number, not a diagnosis. It does not distinguish muscle from fat, so very athletic people can read as overweight. Treat it as one rough indicator and talk to a clinician for anything that matters.