What are the haircut numbers?

Question

What are the haircut numbers? I usually get a number 0 Which They shave your whole back head cleanly. I always gotten that but what is the length of a number1,2,3,4,5,6,7,8,9?

Answer 1

this is what some other guy's question was too, and here is the best answer:

All these figures are average, each company that makes them are "off" just a bit even though they say the sizes are "standard"

#1 is 1/8 th inch

#2 is 1/4 inch

#3 is 3/8 inch

#4 is 1/2 inch

#6 is 3/4 inch

#8 is 1 inch

Some companies make a #10 which is about an 1 1/2 inch