Haircut Numbers And Hair Clipper Sizes – Ultimate Guide 2024 | FashionBeans (2024)

Haircut numbers form the core language of the barbering world, and they are crucial to achieving the precise haircut you desire. Just as complex as any other design craft, the art of haircutting employs a unique set of tools and terms. Of these, hair clippers take center stage in a barber’s toolkit.

This comprehensive guide sheds light on the mystery behind haircut length numbers and explores the range of hair clipper sizes that shape your look and haircut lengths.

Keep reading to discover all you need to know about haircut numbers and hair clipper sizes before your next trip to the barber.

What Are Haircut Numbers?

Haircut numbers refer to the different sizes of hair clippers used in cutting men’s hair. Each number corresponds to a specific length of hair left on the scalp after a haircut.

The numbers typically range from 0 to 8, with 0 being the shortest length (almost bald) and 8 being the longest length (1 inch). This system allows barbers to achieve uniform and consistent haircuts, and it also helps clients communicate their preferred haircut length more effectively.

In This Article

  1. Haircut Clipper Sizes
  2. Overview of Haircut Length
  3. Final Thoughts
  4. FAQs
Haircut Numbers And Hair Clipper Sizes – Ultimate Guide 2024 | FashionBeans (1)

Hair Clipper Sizes in MM: A Quick Guide

Here’s a quick table to familiarize yourself with haircut clipper sizes in inches and millimeters. Remember, the higher the number, the longer the haircut.

Haircut Number Length in Inches Length in Millimeters
Number 0 Haircut 0 in 0 mm
Number 1 Haircut 1/8 in 3 mm
Number 2 Haircut 1/4 in 6 mm
Number 3 Haircut 3/8 in 10 mm
Number 4 Haircut 1/2 in 13 mm
Number 5 Haircut 5/8 in 16 mm
Number 6 Haircut 3/4 in 19 mm
Number 7 Haircut 7/8 in 22 mm
Number 8 Haircut 1 in 25 mm

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An Overview of Haircut Length Numbers

Now that we understand the basics, let’s break down each individual haircut number to really understand what it looks like.

Number 0 Haircut

A number 0 haircut is the shortest haircut number, and it doesn’t use any guard on the clipper. It basically shaves the hair down to the skin, hence often referred to as a “bald” or “skin” haircut. This haircut number is commonly used for buzz cuts or military-style cuts, and it can also serve as a starting point for fade haircuts.

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Number 1 Haircut

Next up is the number 1 haircut. This clipper size leaves your hair at an eighth of an inch long, offering a slightly longer trim compared to the number 0. It’s still very short, and the scalp will be visible, but it leaves a little more hair, giving a soft shadowed look. The number 1 haircut is a great choice for those who want a super short but not completely bald look.

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Number 2 Haircut

A number 2 haircut leaves your hair a quarter of an inch long. It’s a short style that doesn’t expose the scalp as much as lower numbers, making it an excellent choice for taper fades and shorter buzz cuts. The number 2 haircut provides a clean, professional look while maintaining a bit of length.

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Number 3 Haircut

With the number 3 haircut, we are getting into longer hair territory. Leaving hair three-eighths of an inch long, it’s an ideal choice for those who prefer a little more hair while maintaining a neat, groomed appearance. It’s less revealing of the scalp and is a popular choice for standard crew cuts.

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Number 4 Haircut

The number 4 haircut leaves hair half an inch long, making it a medium-short style that’s versatile and popular. It allows for more styling options and is less severe than lower numbers. The number 4 haircut is great for those who want to keep their hair short but stylish.

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Number 5 Haircut

A number 5 haircut leaves five-eighths of an inch of hair. This haircut number allows for more texture and styling options, as the hair is long enough to be brushed and groomed in different ways. It’s great for those who want a short yet textured look.

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Number 6 Haircut

The number 6 haircut leaves three-quarters of an inch of hair, offering a longer, fuller look compared to lower numbers. This haircut number is perfect for men who prefer a longer short cut that can be styled in various ways, such as a short pompadour or a slick back.

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Number 7 Haircut

The number 7 haircut leaves seven-eighths of an inch of hair. It’s a good option for men who want to maintain length while keeping their hair manageable and neat. It is typically used for tapering and not often for all-over cuts.

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Number 8 Haircut

Finally, the number 8 haircut is the longest clipper size. It leaves a full inch of hair and is typically used for trimming longer hair and tapering at the lower ends. It’s perfect for those who want to keep length while also maintaining a clean, groomed appearance.

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Final Thoughts

Understanding haircut numbers and hair clipper guard sizes can significantly improve your barber shop visits. It allows you to communicate your desired look more effectively and ensures you leave the chair feeling satisfied with your haircut.

FAQ

    • How do hair clipper sizes work?

      Hair clipper sizes work by using different clipper guards, which determine the length of the hair left after cutting. The guards are numbered from 0 to 8, with 0 giving the shortest cut and 8 leaving the longest hair.

      • What is the size difference between hair clipper sizes?

        Each hair clipper size equates to approximately an eighth of an inch. So, a number 1 guard will leave an eighth of an inch of hair, while a number 2 guard leaves a quarter of an inch, and so on.

        • What do haircut numbers mean?

          Haircut numbers refer to the different lengths of hair that result from using specific clipper guards. They offer a standardized way to communicate your desired hair length to your barber.

          • How many haircut numbers are there?

            There are typically 9 standard haircut numbers, ranging from 0 to 8. Each number represents a specific length of hair.

            • What are the best numbers to use on a fade haircut?

              Fade haircuts often use a combination of lower haircut numbers, like 0, 1, and 2, to create a gradient effect. However, the exact numbers can vary based on personal preference and the specific style of fade desired.

              Remember that your ideal haircut number may vary depending on your hair type, face shape, and personal style. Experiment with different hair clipper sizes and consult your barber to find a look that suits you best.

Haircut Numbers And Hair Clipper Sizes – Ultimate Guide 2024 | FashionBeans (2024)

FAQs

Haircut Numbers And Hair Clipper Sizes – Ultimate Guide 2024 | FashionBeans? ›

Number 1 clipper: 1/8 inch. Number 2 clipper: 1/4 inch. Number 3 clipper: 3/8 inch. Number 4 clipper: 1/2 inch. Number 5 clipper: 5/8 inch.

What does 1, 2, 3, 4, 5 mean in haircuts? ›

Number 1 clipper: 1/8 inch. Number 2 clipper: 1/4 inch. Number 3 clipper: 3/8 inch. Number 4 clipper: 1/2 inch. Number 5 clipper: 5/8 inch.

How short is a number 3 haircut? ›

The Number 3 length is 3/8 of an inch or 10mm. This is a great mid-length option that is stylish yet versatile. While it keeps your hair short and neat, it's not too closely cropped, giving you plenty of options for different hairstyles. Think of this haircut length as a perfect balance.

How short is a number 4 haircut? ›

Haircut Numbers and Clipper Guard Sizes
Clipper Guard NumberInchesMillimeters
39.5
4½12.7
515.9
6¾19
6 more rows
May 29, 2023

How short is a number 2 haircut? ›

Number two haircut

Although still very short, the popular number two clipper guard is also used for buzz cuts and fades. However, because the hair is a quarter of an inch long the scalp is not exposed in the way that it is with a zero or one cut. This makes it a good cut for guys who have thin hair or who are balding.

What does a 5 guard haircut look like? ›

A number 5 haircut leaves five-eighths of an inch of hair. This haircut number allows for more texture and styling options, as the hair is long enough to be brushed and groomed in different ways. It's great for those who want a short yet textured look.

What does a 4 look like haircut? ›

Opting for a number 4 buzz cut isn't just about taking a pair of clippers to your hair; it's about embracing a style that's both timeless and practical. This haircut length, achieved with a guard 4 buzz cut attachment, leaves you with 1/2 inch of hair, blending simplicity with a neat, polished look.

What does a 3 look like haircut? ›

It refers to the length of hair that remains after being clipped with a guard labeled "three". Imagine it like this: the key to a flawlessly styled haircut is leaving approximately 3/8 of an inch (or around 9.5mm) of hair on the sides. It's the Goldilocks zone for your head - not too short, not too long.

What is a number 4 haircut all over? ›

A Number 4 haircut all over looks even and balanced, with the same 1/2 inch length maintained uniformly across the entire head. This gives a neat and tidy appearance. A Number 4 haircut can also be styled with a fade or a taper on the sides, where the hair gradually shortens from the top to the sides and back.

What does a number 7 haircut look like? ›

The Number 7 haircut length is a generous 7/8 inch or 22mm— a versatile cut that seamlessly marries a well-groomed look with a gamut of styling choices. This substantial length is optimal for those yearning for a polished yet laid-back style, permitting your hair to make a statement without appearing unkempt.

What is a number 5 haircut all over? ›

A Number 5 haircut refers to a haircut achieved using the number 5 guard on hair clippers, resulting in a uniform length of about 5/8 inch (or 16mm) all over the head. It's a versatile, medium-length cut that suits various hair types and face shapes.

What is a 2 and 4 haircut? ›

Here's a quick reference for the different haircut lengths. Number 1: One-eighth of an inch. Number 2: One-quarter of an inch. Number 3: Three-eighths of an inch. Number 4: Half an inch.

Is a number 4 haircut 4mm? ›

Simple clipper cuts are also often referred to using numbers. These refer to the guard length used on the blades and therefore the subsequent hair length created. #1 – 3.4mm, #2 – 6.4mm, #3 – 9.5mm, #4 – 12.7mm, #7 – 22.2mm, #8 – 25.4mm.

What is the 2.5 rule for short hair? ›

Practically fool proof, this rule states that if the longest part of your chin is less than 2.25 inches from the tip of your earlobe, then short hairstyles are for you. So why does this work?

What does a 1 haircut look like? ›

What does a number 1 haircut look like? A number 1 haircut leaves the hair at an eighth of an inch, or about 3 millimeters, long. This is considered a very short haircut that results in stubble-like hair that's slightly longer than a close shave.

What does a 2 block haircut look like? ›

The two block haircut features longer hair in the crown area and shorter hair on the sides and back, making it a cross between the mushroom cut and the undercut. To request the two block haircut, ask for an undercut on the sides, “ice pick” sideburns, and a light taper or fade in the back.

What do the numbers mean on haircuts? ›

For those not yet fluent in haircut numbers, we've made a cheat sheet (remember, 1 is the shortest & 8 is the longest) Number 1: One-eighth of an inch. Number 2: One-quarter of an inch. Number 3: Three-eighths of an inch. Number 4: Half an inch.

What is a 2 by 3 haircut? ›

Getting a barber's cut Filipino style follows the “2 x 3” rule, or the practice of taking off two fingers' worth of hair on the sides and three fingers' worth on the back.

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