Put on a pair of pants that fits or just take the depth measurement while you’re wearing your underwear. If you don’t have a chair nearby, sit flat on a bench or table.
The crotch depth is sometimes called the rise length.
Pay attention to the measuring tape and fix it if it’s twisted. If the tape isn’t completely smooth, it will make your length measurement inaccurate.
Ensure that the measuring tape wraps along the curves of your belly and button so your pants fit perfectly. Don’t pull so hard that the fabric puckers on the sides of the tape or the measurement will be too short.
Avoid squatting down to the floor or your length measurement may be too long.
Pants that are too tight make it difficult to sit or squat, which makes your crotch measurements too short.
For example, if your front rise measurement is 13 inches (33 cm) and the back rise is 15 inches (38 cm), your crotch length measurement is 28 inches (71 cm).
This is especially important if you’ll be using the measurements to cut fabric for a pair of pants.
