HealthDifficulty: easy

BMI Calculator

Free BMI calculator - Calculate your Body Mass Index instantly. Determine if you're underweight, normal weight, overweight, or obese. Get your BMI classification and health insights based on your height and weight.

Weight (kg)

Height (cm)

Your BMI

22.9

Normal weight

BMI Categories

Underweight< 18.5

Normal weight18.5 – 24.9

Overweight25 – 29.9

Obesity> 30

Health Impact

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight and obesity in adults.

Note: BMI is a useful measure for most people over 18 years old. However, it is only an estimate and doesn't take into account age, ethnicity, gender and body composition.

How to use BMI Calculator

Simply enter the values in the input fields provided above. Results will update automatically as you type, allowing for instant calculations and side-by-side comparisons.

Our calculators use high-precision mathematical engines to ensure that even the smallest decimal movements are captured accurately.

If you're using this tool on a mobile device, the layout will automatically adjust for touch-friendly interaction. You can save this page to your home screen for quick access.