calculators
Body Mass Index (BMI) Calculator
Calculate your Body Mass Index (BMI) to understand your weight category according to World Health Organization (WHO) medical guidelines.
Calculated strictly in your browser. Health metrics are never stored.
Your Body Mass Index
22.9
Normal weight (Healthy)
Underweight:< 18.5
Normal weight:18.5 – 24.9
Overweight:25.0 – 29.9
Obese:≥ 30.0
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How to Use BMI Calculator
1
Select Unit System
Choose Metric (kg, cm) or Imperial (lbs, ft, in).
2
Enter Weight & Height
Type your measurements.
3
View Classification
Check your exact BMI score and health range category.
About BMI Calculator
BMI is defined as the body mass divided by the square of the body height, expressed in units of kg/m².
Operational Limits
- •BMI is a general screening indicator and does not differentiate between muscle mass and fat
Key Features
- Metric (kilograms and centimeters) & Imperial (pounds and feet/inches) support
- WHO classification ranges: Underweight, Normal, Overweight, Obese
- Visual color-coded scale gauge
- Ideal healthy weight range suggestion
Frequently Asked Questions
According to the World Health Organization, a normal BMI for adults falls between 18.5 and 24.9.
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