BMI Score
22.9
Normal weight
How to Use BMI Calculator Online
1
Choose Unit System
Toggle between Metric (kilograms/centimeters) and Imperial (pounds/feet/inches).
2
Input Height and Weight
Enter your accurate height and weight values.
3
View BMI Classification
Inspect your calculated BMI score and category (Underweight, Normal, Overweight, Obese).
Key Features & Performance
Instant Metric and Imperial unit toggling
Visual BMI classification scale
Compliant with World Health Organization (WHO) standard formula
100% private: height and weight numbers never leave your device
Frequently Asked Questions (FAQ)
What is a normal BMI score for adults?
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered normal or healthy weight for adults.
What formula is used to calculate BMI?
In Metric: BMI = weight (kg) / [height (m)]². In Imperial: BMI = [weight (lbs) / height (in)²] × 703.
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Curated by kcodz • Updated September 2026