Measure from the top of your head to the floor.
Measure the total circumference of the widest part of your chest.
Measure the circumference of the narrowest part of your torso.
Measure the total circumference at the fullest point of your hips. Stand with your feet about hip-width apart.
Starting at the midpoint at the back of the neck at the prominent neck bone, measure across the shoulder and elbow down to the wrist.
Leg length (outseam)
Measure the outside length of the leg from the waist, across the hips and down to the ankle.