Waist circumference (distance around the waist) is a common measure used to check for fat held around the stomach. Having extra body fat around the stomach—more than 35 in. (88 cm) for women and more than 40 in. (102 cm) for men—increases your risk of heart disease and diabetes.
How to measure waist circumference: Place a tape measure around your body at the top of your hipbone. This is usually at the level of your belly button.