⚖️ BMI Calculator
Calculate your Body Mass Index instantly. Find your healthy weight range based on height and weight.
Height
cm
100160220
Weight
kg
30115200
Your BMI
24.5
Normal
175 cm · 75 kg
BMI Scale
Underweight
Normal
Overweight
Obese Class I
Obese Class II
Obese Class III
1518.525303540
Healthy Weight Range
56.7 – 76.3kg
Normal Range: BMI 18.5 – 24.9
Ideal Weight
✅ In healthy range
Interpretation
UnderweightBMI < 18.5
NormalBMI 18.5 – 25●
OverweightBMI 25 – 30
Obese Class IBMI 30 – 35
Obese Class IIBMI 35 – 40
Obese Class IIIBMI ≥ 40
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Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is weight in kilograms divided by height in meters squared. It's the WHO-recommended standard for assessing healthy weight.
What's the difference between China and WHO BMI standards?
China's standard is stricter: normal is 18.5–23.9 (WHO: 18.5–24.9), overweight starts at 24 (WHO: 25). This is because Asian populations face higher chronic disease risk at lower BMI levels.
What are BMI's limitations?
BMI doesn't distinguish muscle from fat — athletes may be misclassified as overweight. It also doesn't consider body fat distribution. Combine with waist circumference and body fat percentage for better assessment.
📖 Usage Guide
The BMI (Body Mass Index) calculator helps you quickly assess whether your weight is in a healthy range.
How to use:
1. Drag or type your height (in cm or feet/inches)
2. Drag or type your weight (in kg or lbs)
3. Instantly view your BMI value and weight category
WHO International Standard:
Normal range: 18.5–24.9, Overweight: ≥25, Obese: ≥30. Additional region-specific standards (e.g. Asian) are available.
Understanding the results:
• Your BMI value with color indicator (green = normal, yellow = overweight, red = obese/underweight)
• Healthy weight range: the standard weight interval based on your height
• Weight adjustment advice: target numbers if you need to gain or lose
BMI limitations: does not distinguish between muscle and fat; athletes may be misclassified. Consider combining with waist circumference and body fat percentage. This tool is for reference only and cannot replace professional medical advice.
Disclaimer: This calculator provides estimates for informational purposes only. Not financial advice.