BMI Calculator
Body Mass Index & category.
Calculate your Body Mass Index (BMI) from height and weight — a widely used general screening measure for whether your weight is in a typical range for your height.
BMI is a general screening tool, not a full health assessment. Consult a doctor for personalized advice.
Supported formats
Supports both metric (cm, kg) and imperial (inches, lb) units.
Things to know
BMI is a general population-level screening tool, not a full health assessment — it doesn't account for muscle mass, bone density, age, sex, or body composition. Athletes and very muscular individuals, for example, can show a high BMI without excess body fat. It should not be used as the sole basis for health decisions.
How your data is handled
All calculation happens instantly in your browser. Nothing you enter is stored or sent anywhere.