Bmi Index Calculator
Calculate your Body Mass Index (BMI) based on height and weight. BMI is a measure of body fat based on height and weight that applies to adult men and women.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the BMI Index Calculator
This calculator computes your Body Mass Index (BMI) using metric units only.
- Enter your weight in kilograms (kg) into the "Weight" field. Example:
70. - Enter your height in centimeters (cm) into the "Height" field. Example:
175. - Click the "Calculate BMI" button.
- Your BMI value and category will appear below:
- Underweight (BMI < 18.5)
- Normal weight (BMI 18.5–24.9)
- Overweight (BMI 25–29.9)
- Obese (BMI ≥ 30)
Note: All inputs must be positive numbers. The formula used is weight (kg) divided by height (m) squared.
Previous Results
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Frequently Asked Questions
BMI stands for Body Mass Index. It is a numerical value calculated from your weight and height that estimates body fat and helps categorize weight status.
BMI is calculated by dividing your weight in kilograms by the square of your height in meters: BMI = weight (kg) / (height (m))².
Underweight: BMI less than 18.5. Normal weight: 18.5 to 24.9. Overweight: 25 to 29.9. Obese: 30 or greater.
