What is BMI?
Body Mass Index (BMI) is simply the ratio of your weight to your height, squared.
This has been used as a general guideline for obesity levels for years.
You can see where your number falls in the next chart.
If you don't like the number we return for your BMI, just enter a different
weight and press Calculate again.
We even do the math to show you how far you are from a healthier range!