Step 1

Find a hard flat surface, tape a piece of blank paper, flush against a wall. Place your foot on the paper, with your heel flush against the wall, stand up straight.

Step 2

Have a friend mark the longest part of your foot (referred to as heel-to-toe length) on the paper with a pen or pencil, or measure yourself if necessary. Repeat with the other foot, as right and left sizes may be different.

Step 3

Use a ruler to measure the heel-to-toe length you marked for each foot.