BMI Calculator

This bmi calculator kg tool works out your body mass index from your weight and height. Enter your weight in kilograms and your height, and it shows your BMI and the general category that value falls into. You can use it as a bmi calculator for male or female inputs, and it suits anyone checking where they sit on the standard BMI scale. BMI is calculated as weight in kilograms divided by height in metres squared. It is a simple screening number, not a diagnosis. It does not measure body fat, muscle, bone density, or age, so a very muscular person can score high without carrying excess fat. This is an educational estimate, not medical advice. If you have questions about your weight or health, talk to a doctor or other qualified clinician. The calculation runs in your browser, nothing is uploaded, there is no account, and the page works offline once it has loaded.