My calves measure in at 12.5 inches.
The Timberlands have a 13" circumference in size 5.5.
The shaft height is 14", not including the heel (measured from the back).
Not sure what you would call this measurement, but from my heel to the top of my knee, while sitting, is 18", measured on the inside of my leg.

My son asked me what I was doing. I said "Measuring my leg." His face was PRICELESS.