A waist measurement of 30 inches is considered petite. Small is defined as a size between 29 and 31, medium is 32 to 34, and large is 36 to 38. Anything between 40 and 42 inches is XL, while anything over 44 inches is XXL.
Waist circumference is a popular measurement that measures the distance around the waist. It is used to examine the stomach for fat. A tape measure is wrapped around the body, beginning at the hipbone, to determine this. Heart disease is more likely in women with a waist circumference of more than 35 inches and males with a waist circumference of more than 40 inches.