BMI Calculator
Calculate your Body Mass Index (BMI) using your height and weight. Supports both metric and US measurement units.
Your Result
BMI
Enter your height and weight
Your BMI result and category will appear here.
What is BMI?
Body Mass Index (BMI) is a screening measurement calculated from a person's weight and height. It is commonly used to categorize weight status in adults.
BMI Formula
BMI = Weight (kg) ÷ Height² (m²)
Adult BMI Categories
Underweight
Below 18.5
Healthy Weight
18.5 – 24.9
Overweight
25.0 – 29.9
Obesity
30.0 or higher
Important Health Information
BMI is a general screening measure and does not directly measure body fat or overall health. It may not be appropriate for every person, including children, teenagers, pregnant people, athletes, or people with certain medical conditions. This calculator is for general informational purposes and should not replace advice from a qualified healthcare professional.