Free BMI Calculator
Enter your height and weight to calculate your Body Mass Index (BMI) instantly. See which category you fall into and get a clear picture of where you stand.
Understand Your Body Mass Index
BMI gives you a quick snapshot of whether your weight is proportionate to your height. While it is not a diagnostic tool, it is widely used by healthcare professionals as a starting point for assessing weight-related health risks.
Frequently Asked Questions
BMI is calculated by dividing your weight in kilograms by the square of your height in meters (kg/m²). The tool handles unit conversions automatically if you enter pounds and inches.
A BMI between 18.5 and 24.9 is considered normal weight. Below 18.5 is underweight, 25–29.9 is overweight, and 30 or above is classified as obese.
BMI is a useful screening tool but does not account for muscle mass, bone density, or fat distribution. Athletes and highly muscular individuals may have a high BMI without excess body fat.