BMI Calculator
Calculate your Body Mass Index (BMI) and find out your weight category.
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How to Calculate
BMI = Weight (kg) / Height (m)²
BMI (Body Mass Index) is calculated by dividing your weight in kilograms by the square of your height in meters. For imperial units, the formula is: BMI = (Weight in lbs / Height in inches²) × 703.
Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is a measure of body fat based on your weight relative to your height. It is calculated as weight (kg) divided by height (m) squared.
What are the BMI categories?
Underweight: BMI < 18.5, Normal weight: BMI 18.5-24.9, Overweight: BMI 25-29.9, Obese: BMI ≥ 30. These ranges may vary slightly for different populations.
Is BMI accurate for everyone?
BMI is a useful screening tool but has limitations. It does not distinguish between muscle and fat mass, so athletes may have a high BMI despite being healthy. It also does not account for age, sex, or body composition.