BMI Calculator
Calculate your Body Mass Index (BMI) to check if your weight is healthy. Supports both metric and imperial units.
How to Use
Select your preferred unit system (metric or imperial).
Enter your weight and height.
Click 'Calculate' to see your BMI and category.
Check the BMI chart below to see all weight categories.
Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is a simple measure of body fat based on height and weight. It's calculated by dividing your weight in kilograms by the square of your height in meters (kg/m²).
Is BMI accurate for everyone?
BMI is a useful screening tool but doesn't directly measure body fat. It may not be accurate for athletes (high muscle mass), elderly people, or children. Consult a healthcare professional for a complete assessment.
What is a healthy BMI range?
A BMI between 18.5 and 24.9 is considered normal/healthy weight. Below 18.5 is underweight, and above 25 is overweight.
How is BMI calculated?
BMI = weight (kg) ÷ height² (m²). For example, a person weighing 70 kg and 175 cm tall: BMI = 70 ÷ (1.75 × 1.75) = 22.86.