BMI Calculator
Calculate your Body Mass Index and determine your weight category
Body Measurements
Enter your height and weight to calculate your BMI
BMI Results
Your Body Mass Index and weight category
BMI Categories
Frequently Asked Questions
What is BMI?▾
Body Mass Index (BMI) is a measure of body fat based on a person's height and weight. It is calculated as weight in kilograms divided by the square of height in meters (kg/m²).
What is a healthy BMI range?▾
For adults, 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 obese.
Is BMI accurate for athletes?▾
BMI can overestimate body fat for muscular athletes because muscle weighs more than fat. For a more accurate picture, athletes may prefer body fat percentage or waist-to-hip ratio measurements.
Does BMI differ for men and women?▾
The BMI formula is the same for men and women, but interpretation can vary slightly. Women typically have more body fat than men at the same BMI.