BMI Calculator (Body Mass Index)
BMI Calculator
Find out where you stand. Enter your height and weight to calculate your Body Mass Index and see which category you fall into.
What is BMI?
Body Mass Index (BMI) is a simple numerical value calculated from your height and weight. It’s one of the most widely used screening tools for assessing whether a person’s weight falls within a healthy range relative to their height.
BMI categories
The World Health Organization defines BMI ranges as follows:
- Under 18.5 → Underweight
- 18.5 – 24.9 → Healthy weight
- 25.0 – 29.9 → Overweight
- 30.0 and above → Obese
How is it calculated?
BMI is calculated by dividing your weight in kilograms by your height in meters squared (kg/m²). This calculator handles all unit conversions automatically whether you enter imperial or metric measurements.
Know the limits — BMI doesn’t account for muscle mass, bone density, or body fat distribution. A highly muscular person may have a high BMI without carrying excess fat. Use it as one data point, not the full picture.
Units
Based on WHO classification · BMI = weight (kg) ÷ height (m)²
