BMI Calculator
Enter your height and weight; instantly see your body mass index (BMI) and which category you fall into.
22.9
Body mass index
Normal
Category
About
BMI (Body Mass Index) is a general assessment of your weight relative to your height and gives a quick sense of whether you're in a healthy weight range. It's a standard indicator used by the World Health Organization.
Just enter your height and weight; the tool computes your BMI and shows whether you're underweight, normal, overweight or obese. BMI is a screening tool and is not a substitute for medical advice.
How to use
- Enter your weight in kilograms (kg).
- Enter your height in centimeters (cm).
- Your BMI value and category are calculated instantly.
Frequently Asked Questions
- How is BMI calculated?
- BMI = weight (kg) ÷ height² (m). For example, for 70 kg and 1.75 m: 70 ÷ (1.75 × 1.75) ≈ 22.9.
- What are the BMI categories?
- Below 18.5 is underweight, 18.5–24.9 normal, 25–29.9 overweight, and 30 or above obese.