BMI Calculator
Calculate your Body Mass Index from height and weight.
About the BMI Calculator
Calculate your Body Mass Index from height and weight. Supports metric and imperial units.
Private by design
Everything you type here is processed inside your browser. Nothing is sent to a server, logged or stored, so it is safe to use with real numbers, drafts and anything you would not paste into a hosted tool.
Questions people ask
How do I calculate my BMI?
Enter your height and weight. The calculator applies the BMI formula (weight in kg divided by height in meters squared) and shows your BMI with its category.
What is a healthy BMI range?
A BMI between 18.5 and 24.9 is considered normal weight. Under 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese according to WHO guidelines.
Does BMI work for everyone?
BMI is a general screening tool. It may not be accurate for athletes, elderly people, or those with high muscle mass. Consult a healthcare provider for personalized assessment.