Find out your Body Mass Index (BMI) in seconds. Enter your height and weight to see where you fall on the standard BMI scale, along with the healthy weight range for your height.
Find out your Body Mass Index (BMI) in seconds. Enter your height and weight to see where you fall on the standard BMI scale, along with the healthy weight range for your height. This calculator draws on peer-reviewed, industry-standard formulas used by fitness professionals, dietitians and clinicians worldwide, translated into a fast, easy-to-use browser tool.
Tracking metrics like this over time — rather than relying on a single reading — gives you a much clearer picture of trends in your health and fitness journey. Use this tool regularly alongside our other calculators for a fuller picture of your overall wellbeing.
A BMI between 18.5 and 24.9 is generally considered a healthy range for most adults, according to the World Health Organization.
BMI does not distinguish between muscle and fat, so very muscular individuals may show a higher BMI despite low body fat. Athletes should also check our Body Fat Percentage Calculator for a fuller picture.
The BMI formula itself is the same for everyone, but body composition naturally differs between sexes, which is why it should be viewed alongside other measures like waist-to-hip ratio.
Checking every few months is enough for most people tracking gradual weight or lifestyle changes.