BMI Calculator

Body Mass Index (BMI) is a quick screening measure that relates your weight to your height. It is calculated as weight in kilograms divided by height in meters squared. A BMI between 18.5 and 24.9 is generally considered a healthy range for adults, 25 to 29.9 is classed as overweight, and 30 or more as obese.

BMI does not distinguish between muscle and fat, so athletes may score high while being perfectly healthy. Use it together with our ideal weight, body fat and daily calorie calculators to get a fuller picture of your health.