BMI Calculator

Calculate your Body Mass Index using metric or US units.

Enter Your Measurements

Your Result

Body Mass Index
Enter your measurements to calculate BMI.
UnderweightBelow 18.5
Healthy weight18.5–24.9
Overweight25.0–29.9
Obesity30.0 or above

BMI is a screening measure for adults and does not diagnose health or body composition. Interpretation can differ for children, pregnancy, athletes and some populations.

Free Online BMI Calculator

The EKO24 BMI Calculator calculates Body Mass Index from your height and weight. You can use metric measurements in kilograms and centimeters or US measurements in pounds, feet and inches.

How BMI is calculated

BMI compares body weight with height squared. For metric measurements, weight in kilograms is divided by height in meters squared. The calculator performs the conversion and calculation automatically.

Adult BMI categories

For general adult screening, BMI values are commonly grouped as underweight below 18.5, healthy weight from 18.5 to 24.9, overweight from 25.0 to 29.9, and obesity at 30.0 or above.

Understanding your result

BMI is a simple screening measure and cannot directly measure body fat, muscle mass or overall health. It should not be used by itself to diagnose a medical condition. If a BMI result raises a health concern, discuss it with a qualified healthcare professional.