zzz-guides-measurement-guide-bottoms
Waistline
Measure around your natural waist.
Pants/skirt Length
Measure the length from the top of the waistband down to the cuff of the pants.
Inseam
Measure the inside of the leg, from the crotch all the way down at the level of the ankle or foot.
Thigh Width
Starting at the crotch seam and ending 1–2 inches below the hip area.
Hipline
Measure across the hip area, this is in most cases 1 1/2 inches below the zipper
Front Rise
Measure from the bottom of the crotch seam up to the waist band.