2/8″ = 1/4″ the number two cut leaves 1/4th of an inch left.
40+ 1 Inch Haircut Length. A number 4 haircut is longer leaving a medium length cut of around 1/2 inch. A number 3 haircut has 3/8 inch of hair left.
Haircut Numbers Hair Clipper Guard Sizes 2020 Guide from www.menshairstylesnow.com
Because while waiting for your hair to grow back, a bad hair cut can be extremely frustrating. The largest of all clipper sizes is the number 8 haircut length! Ear length (pixie) if you have a spectacular bone structure you're just dying to show off, a pixie cut or ear length cut is a great idea.
The average rate of hair growth is 1/8 per week which is why clipper guards are denoted in eights of an inch.
This is the longest hair length you can have with a clipper size. A number 4 haircut leaves hair 1/2 inch long, making it the medium length of the clipper guards. I have a number 8 clipper for my razor. It may happen that number one cut of one hair salon may match with the number two cut in the other.