Here's a breakdown:
* Number 1: 1/8 inch (very short)
* Number 2: 2/8 inch (1/4 inch)
* Number 3: 3/8 inch
* Number 4: 4/8 inch (1/2 inch)
* Number 5: 5/8 inch
* Number 6: 6/8 inch (3/4 inch)
* Number 7: 7/8 inch
* Number 8: 8/8 inch (1 inch)
Key things to remember:
* Lower the number, shorter the hair. A number 1 is much shorter than a number 8.
* Guards are attachments for clippers. They clip onto the clipper blades and create a consistent distance between the blades and your scalp, thus determining the length of the hair left.
* "Zero" or "Skin Fade" means no guard is used. The clippers cut the hair extremely close to the skin, creating a very short or shaved look.
* Consistency is key. Using the same number guard all around the head will create a uniform length. Barbers often use different numbers on the sides and back compared to the top for styling and fades.
* Variations exist. Some clippers or guard sets might have slightly different measurements, but the general principle remains the same.
How to use this knowledge:
When getting a haircut, you can tell your barber:
* "I want a number 3 on the sides and a number 4 on the back."
* "Can I get a fade, starting with a number 1 at the bottom and blending up to a number 4?"
* "Just trim the sides with a number 6."
Being specific will help your barber understand your desired length and style, leading to a better haircut experience. It's always helpful to bring a picture of the desired haircut as well.