Calculate your Body Mass Index (BMI) and get an instant health assessment with our free online tool. Enter your height and weight to see which category you fall into — underweight, normal, overweight, or obese — along with helpful context about what your number means. All processing happens in your browser for complete privacy.
Calculate your Body Mass Index (BMI) and get an instant health assessment with our free online tool. Enter your height and weight to see which category you fall into — underweight, normal, overweight, or obese — along with helpful context about what your number means. All processing happens in your browser for complete privacy.
Choose your unit system
Select metric (kg, cm) or imperial (lbs, ft/in) units for your measurements.
Enter your height
Input your height in the selected unit system.
Enter your weight
Input your current weight in the selected unit system.
View your BMI result
See your BMI value, health category, and a visual representation on the BMI scale.