Slacks Length: Measure from your waist marker down to your ankle bone at your side.
Waist to Knee: Measure from your Waist marker to the middle of your knee at the side. You will feel a little, but pretty easy to find, indentation on the side of your leg to indicate that you have reached the knee.
Inseam: Have model hold the top of the tape measure between legs at the crotch (where the seams come together on the legs of your pants) and have assistant measure from that point down to inner ankle bone.Crotch measurement: Simply subtract inseam measurement from slacks length measurement.
