Step 1: Measure waist size
Measure your waist by placing the tape measure around the natural indentation or break in your waist. If you need help locating this indentation, bend to the side; the crease will be the location of your waist.
Step 2: Measure hip size
Next, measure the fullest part of your hips, making sure the tape measure remains parallel to the floor. This is your hip measurement.
Step 3: Find your panties size
Now that you know your two measurements, consult the chart below to determine your proper underpants size. If your measurements represent two different panties sizes, choose the larger of the two sizes.