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Body Mass Index (BMI) Calculator
Calculate your BMI quickly using metric or imperial measurements. Understand your health weight category based on World Health Organization guidelines.
Body Measurements
cm
kg
Your BMI Score
22.9 kg/m²
Category: Normal weight (Healthy)
• Underweight: < 18.5
• Normal: 18.5 – 24.9
• Overweight: 25.0 – 29.9
• Obese: ≥ 30.0
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How to Use BMI Calculator
Select Unit System
Choose Metric (cm/kg) or Imperial (ft/lbs).
Enter Height & Weight
Provide your height and current body weight.
View BMI Category
See your BMI number and official health classification.
Key Features & Benefits
Metric (cm / kg) and Imperial (feet, inches / lbs) support
Official WHO classification (Underweight, Normal, Overweight, Obese)
Instant color-coded health indicators
Zero health data storage — private and ephemeral
Frequently Asked Questions
What is a normal BMI range?
According to the World Health Organization, a normal BMI for adults falls between 18.5 and 24.9 kg/m².
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