BMI Calculator
Calculate your Body Mass Index using metric or imperial units.
Enter Your Details
Enter your weight and height to calculate your BMI
What is BMI?
Body Mass Index (BMI) is a measure of body fat based on height and weight. It's used as a screening tool to identify potential weight problems.
BMI = weight (kg) / height (m)² or BMI = (weight (lbs) / height (in)²) × 703
BMI Categories
BMI values are categorized as follows:
- Underweight: BMI less than 18.5
- Normal Weight: BMI between 18.5 and 24.9
- Overweight: BMI between 25 and 29.9
- Obese: BMI 30 or higher
BMI Limitations
While BMI is a useful screening tool, it has limitations:
- Muscle Mass: BMI doesn't distinguish between muscle and fat, so athletes may have high BMIs
- Age: BMI ranges may not be appropriate for children, teens, or elderly individuals
- Gender: Body composition differs between men and women
- Always consult with a healthcare provider for personalized health advice