Body mass index (abbreviated BMI) is a formula created by Adolphe Quételet. BMI is actually a reference to indicate the amount of body mass and is the most accurate global measure of obesity. Using this scale, you can find out if you are underweight, overweight or have a normal weight!

If you want to know your body mass index, you can easily calculate it by installing this app.

Also, this app is free and open source, and its source code is available on GitHub:

https://github.com/AlirezaIvaz/BMICalculator