Measure around the narrowest part of your waistline with one forefinger between your body and the measuring tape.
Stand with your heels together, keeping tape straight and parallel to the floor. Measure around the fullest part of your hips.
Measure under your arms at the fullest part of your chest. Be sure to go over your shoulder blades.
Measure around your waistline where you normally wear your pants with one forefinger between your body and the measuring tape.
Measure around your body parallel to the floor at the fullest part of your hip.