Turn the cuff over so that the extra length of the hem folds out.

Clip the extra length, leaving about a half inch of fabric beyond the seam.

Be sure to only cut through one layer of the fabric—the excess fabric. Do not cut through the pants.

This step is optional. If you are hemming pants for a growing kiddo, leaving the excess length allows you to rip the seam and magically lengthen the pants later on.