BMI Calculator
Calculate your Body Mass Index (BMI) — a simple measure that uses your weight and height to estimate whether you are underweight, normal weight, overweight or obese.
Your Results
Your BMI
0
—
< 18.5 Normal
18.5–24.9 Overweight
25–29.9 Obese (Class I)
30–34.9 Obese (Class II+)
≥ 35
Healthy weight range for your height
0 – 0 kg
How It Works
BMI is calculated by dividing your weight in kilograms by the square of your height in metres: BMI = weight (kg) / height (m)². It provides a quick screening tool for weight categories.
BMI does not distinguish between muscle and fat mass. Athletes and muscular individuals may have a high BMI without excess body fat. For a complete picture, consider body composition measurements and consult a healthcare professional.
This calculator provides estimates only. BMI is a screening tool, not a diagnostic measure. Consult a healthcare professional for personalized advice.