Calculate your Body Mass Index instantly using your height and weight. Choose metric or imperial units.
Your BMI result will appear here.
BMI below the commonly used healthy range.
BMI within the commonly used healthy range.
BMI above the commonly used healthy range.
BMI in the commonly used obesity range.
Body Mass Index (BMI) is a simple calculation that compares a person's weight with their height. It is commonly used as a screening measure to place adults into broad weight categories.
For metric measurements, BMI is calculated by dividing weight in kilograms by height in metres squared.
BMI can provide a general indication of whether your weight falls within a commonly used range. However, BMI does not directly measure body fat and does not account for factors such as muscle mass, body composition, age or individual health circumstances.
For most adults, a BMI from 18.5 to 24.9 is commonly classified as the healthy-weight range.
No. BMI is a screening tool and does not directly measure body fat or body composition. It may not accurately reflect health status for everyone.
Yes. Select the Imperial option above and enter your weight in pounds and height in feet and inches.
Yes. This BMI calculator is free to use.