How good is the BMI?

By: Robert H. Shmerling, M.D., Faculty Editor, Harvard Health Publications Do you know your BMI? Increasingly, people know theirs, just as they know their cholesterol. If you don’t know your BMI, you can use a BMI calculator available online, including this one at Harvard Health Publications. All you need is your height and weight. Or, you can calculate it yourself, using this formula: …