To measure accurately, please have someone assist you and use a tape measure.
WAIST: Measure around the waist at the level of your belly button. Pull the tape measure snug, but not tight. Note: This waist measurement is not the same as a trouser waist measurement, as the kilt is worn higher, the waist measurement is usually greater than the trouser measurement.
HIP:
Measure around the widest area of your hips, do not pull the tape measure tight, this should be a fairly loose measurement.
LENGTH: While kneeling on the floor and keeping your back upright. measure down the side of your leg, from the top of your hip bone to the floor. There is a temptation to lean forward to view the measurement but this causes an inaccurate length measurement.
HEIGHT: How tall are you?