Measure under your arms and around the fullest part of your chest. This is your bust measurement.

Pull the measuring tape around your ribcage, just underneath your breasts. Make sure the tape is running straight and level around your body. This is your underbust measurement.

Bend slightly to one side and wrap the measuring tape loosely where the bend is in your body. This is your waist measurement.

Stand with your feet hip-width apart, measure around the fullest part of your hips. This is your hip measurement.