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BMI Calculator
Calculate Body Mass Index using metric or imperial units and check your weight category instantly.
Calculate BMI
BMI Classification Scale
About the BMI Calculator
Calculate your Body Mass Index (BMI) to assess whether your weight is in a healthy range for your height. Our BMI Calculator supports both metric and imperial units and provides the WHO weight classification along with health guidance.
Key Features
- Supports metric (kg, cm) and imperial (lbs, ft/in) units
- Instant BMI calculation with WHO weight category
- Visual BMI scale for easy reference
- Personalized health advice based on BMI category
- Covers all 6 BMI categories including 3 obesity classes
- Free with no registration or personal data stored
How to Use
- Select your preferred unit system
- Enter your current weight
- Enter your height in centimeters or feet and inches
- Click 'Calculate BMI' to see your result
- Review your BMI category and guidance
Frequently Asked Questions
What is a healthy BMI?
According to WHO guidance, a BMI between 18.5 and 24.9 is considered normal or healthy weight.
Is BMI an accurate measure of health?
BMI is a useful screening tool but has limits. It does not account for muscle mass, bone density, or fat distribution.
Does BMI apply to children?
Children use the same formula, but results are interpreted with age- and sex-specific growth charts rather than adult categories.
Is BMI the same for men and women?
The formula is the same, though body composition can differ at the same BMI.
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