Measure yourself in your undergarments for most accurate result. Keep the measuring tape parallel to the floor.
Measure underneath your arms around the fullest part of your chest. Keep the tape level across your shoulder blades.
Measure around your natural waistline. This is the narrowest part of the body typically at or just above the belly button. Keep the tape comfortably loose.
Stand with your feet together and wrap the tape around the fullest part of your hips.
Stand with your feet together. Measure from your inner shoulder (where your collarbone meets your shoulder) straight down to the floor.
Measure from the crotch area down the inside of the leg to your ankle.