Medically reviewed by Suzanne Fisher, RD Key Takeaways Body mass index (BMI) is a calculation used to estimate your body fat.

How to Use the Following BMI Calculator: This tool calculates your body mass index (BMI), which is a measure of your mass relative to your height. Our calculator accounts for the fact that, in healthy ...

If your BMI reading has ever felt off — like it didn’t quite match how you look or feel — you’re not the only one questioning it. A string of studies published this year has doctors and researchers ...

The current BMI calculation gives tall people the short end of the stick, an Oxford mathematician says. Body mass index, or BMI, has long been used as the quickest measure of whether a person’s weight ...