I measure in:
Very tapered fit
Very loose fit
Measure natural waistline.
Measure 7" below the waist or widest point of hips.
Trousers U crutch:
Measure from the top of the waistband in the front to the top of the waistband in the back.
Measure from top of waist band to bottom of cuff.
Measure inseam from crotch to bottom of cuff.
Measure around thigh at widest point.
Trousers required cuffs:
Measure width around cuff.