Gather a sheet of paper larger than your foot
Place the paper on a hard, flat floor against a wall
Stand on the paper with your heel touching the wall
Keep your weight evenly on both feet
Mark the tip of your longest toe on the paper
Mark the widest part of your foot if needed
Remove your foot from the paper
Measure the distance from the wall edge to the toe mark
Measure both feet and use the larger measurement
Measure in the evening for the most accurate size
Add a little extra room if you are choosing shoes
Compare the measurement to a shoe size chart