Health
BMI Calculator
Calculate your Body Mass Index to understand whether your weight is in a healthy range for your height. Works in both metric and imperial units.
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Frequently Asked Questions
What is BMI and how is it calculated?
Body Mass Index (BMI) is calculated by dividing your weight in kilograms by the square of your height in meters. For example, 70kg ÷ (1.75m)² = 22.9 BMI.
What is a healthy BMI range?
For most adults, a BMI between 18.5 and 24.9 is considered healthy. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is considered obese.
Is BMI accurate for everyone?
BMI is a useful screening tool but has limitations. It doesn't measure body fat directly and may be inaccurate for athletes (high muscle mass), elderly people, and during pregnancy.
How can I improve my BMI?
A healthy BMI is achieved through balanced nutrition, regular physical activity, adequate sleep, and stress management. Small, sustainable changes are more effective than rapid weight loss.