BMI Calculator â Instant Body Mass Index (Men & Women)
Calculate your exact Body Mass Index (BMI), ideal weight range, and WHO health risk classification instantly.
BMI Calculator â Instant Body Mass Index (Men & Women)
Calculate your exact Body Mass Index (BMI), ideal weight range, and WHO health risk classification instantly.
Enter your values on the left and click Calculate to view instant results.
How to Use This BMI Calculator
- Select your preferred measurement system (Metric or Imperial).
- Enter your current height and weight.
- Select your gender and age to customize recommendations.
- Click Calculate BMI to view your exact index, category, and healthy weight goal.
Mathematical Formula & Methodology
Body Mass Index is calculated using the World Health Organization (WHO) standard formula:
For Imperial units (lbs & inches): BMI = (Weight (lbs) × 703) ÷ (Height (in))²
Frequently Asked Questions
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered normal/healthy for adults.
BMI does not distinguish between muscle mass and fat mass. Highly muscular athletes may have a high BMI despite having low body fat. In such cases, use our Body Fat Calculator.
A BMI above 25 indicates overweight status, and above 30 indicates obesity, which can elevate risks of cardiovascular conditions, hypertension, and type 2 diabetes.