Question: what is the average size of a woman's calf?
Answer: For example 14 1/4" was the average calf circumference of women whose calves measured in the 14" range, while 16 1/2” was the average calf circumference of women who calves measured in the 16" range. As you can see from the chart, a size 16 boot top has a circumference of 16 1/2 inches.