Beard Growth Kits
Beard Grooming Kits
Beard Color Kits
| Category | Length (mm) | Length (inches) | Growth time (approx.) | Style names |
|---|---|---|---|---|
| Clean Shaven | 0 mm | 0" | — | Clean shave, bare face |
| Shadow / 5 O'Clock | 0.5 to 1 mm | 0 to 1/16" | 1 to 2 days | 5 o'clock shadow, designer stubble |
| Light Stubble | 1 to 3 mm | 1/16 to 1/8" | 3 to 5 days | Stubble beard, razor stubble |
| Heavy Stubble | 4 to 6 mm | 1/8 to 1/4" | 7 to 10 days | 10-day beard, perpetual stubble |
| Short Beard | 6 to 12 mm | 1/4 to 1/2" | 2 to 4 weeks | Boxed beard, short full beard |
| Medium Beard | 12 to 25 mm | 1/2 to 1" | 1 to 2 months | Full beard, tailored beard, corporate beard |
| Long Beard | 25 to 75 mm | 1 to 3" | 2 to 6 months | Garibaldi, lumberjack, ducktail beard |
| Very Long / Viking | 75 mm+ | 3"+ | 6+ months | Viking beard, wizard beard, yeard |
Beard Length Chart: mm, Inches, and Guard Numbers
Plenty of guys grow a beard without ever knowing exactly how long it is. They eyeball the trim, hope for the best, and end up with something close to what they wanted. This chart fixes that. Below you'll find every beard length in millimeters, inches, and clipper guard numbers, so you can hit your target length on purpose.
In This Guide
- How beard length changes your look
- The full beard length chart (mm & inches)
- Trimmer guard number reference
- Beard lengths & their styles
- Best beard length by face shape
- Grooming tips for every length
- Frequently asked questions
How Beard Length Changes Your Look
Beard length is a visual tool. The right length slims a round face, defines a soft jawline, softens a sharp one, or makes you read younger or more authoritative. The same face looks completely different with a 1 mm shadow, a 10 mm short beard, and a 25 mm full beard.
Here are three key ways to determine the right beard length for you:
Face shape: Beard length changes how wide, narrow, long, or angular your face appears. Round faces benefit from chin length. Long faces benefit from width on the sides.
Hair density: Patchy or thin growth usually looks sharper when kept short. Dense even growth can carry longer lengths without looking unkempt.
Lifestyle & time: Pick a length you'll keep up with. Medium lengths (10 to 20 mm) take more trimming work than long beards, not less.
The Beard Length Chart (mm & Inches)
Use this chart to pinpoint where your beard sits today and where you want it to go. Note that facial hair grows around 12 to 15 mm (about half an inch) per month. Your genetics, age, and overall health will affect your personal rate.
Trimmer Guard Number Reference Chart
Trimmer guard lengths and numbers can vary slightly between brands, but most fall within a similar universal range. Here's what each guard number translates to in millimeters and inches, alongside their beard type.
| Guard # | Length (mm) | Length (inches) | Beard Category |
|---|---|---|---|
| #0 / No Guard | 0.5 to 1.5 mm | 0 to 1/16" | Shadow / stubble |
| #1 | 3 mm | 1/8" | Light stubble |
| #2 | 6 mm | 1/4" | Heavy stubble |
| #3 | 10 mm | 3/8" | Short beard (entry) |
| #4 | 13 mm | 1/2" | Short to medium beard |
| #5 | 16 mm | 5/8" | Medium beard |
| #6 | 19 mm | 3/4" | Medium beard |
| #7 | 22 mm | 7/8" | Medium to long beard |
| #8 | 25 mm | 1" | Long beard begins |
Guard lengths may differ by a millimeter or two depending on your trimmer. Always check your specific trimmer's guide before committing to a length.
Beard Styles by Length
Each length on the chart opens up a different set of beard styles. A good rule of thumb, regardless of which you choose, is to start one guard longer than you think you need. You can always step down, but you can't go back. Start at your target guard, then drop one number at a time until you hit the length you want.
Shadow & Light Stubble (0.5 to 3 mm · ~#0 to #1 guard)
The lowest-maintenance look on the chart, and one of the highest-rated for attractiveness in survey data. The shadow adds definition to your jawline without any of the commitment that comes with a full beard.
Best styles: 5 o'clock shadow, designer stubble, razor stubble.
Heavy Stubble (4 to 6 mm · ~#2 guard)
The sweet spot between scruffy and styled. This style is office-safe, masculine, and flattering on almost every face shape.
Best styles: 10-day beard, perpetual stubble.
Short Beard (6 to 12 mm · #2 to #4 guard)
The professional beard. Neat enough for business settings and versatile enough for everyday wear. Hides patchiness well. Needs trimming every 3 to 5 days.
Best styles: Boxed beard, short full beard, corporate beard.
Medium Beard (12 to 25 mm · #4 to #8 guard)
Medium beards are like the Goldilocks of facial hair, not too short, not too long, but just right. However, they're the most time-consuming length to keep looking sharp because the edges drift quickly.
Best styles: Full beard, tailored beard, early Garibaldi.
Long Beard (25 to 75 mm · beyond #8)
A statement piece that needs patience, oil, balm, and a boar-bristle brush. Long beard styles are easier to maintain than medium length in some ways, since shape forgives more, but conditioning becomes critical.
Best styles: Garibaldi, ducktail, lumberjack.
Viking / Yeard+ (75 mm+ · 6+ months growth)
A full identity. The "yeard" (year-long beard) starts here. Daily conditioning, regular brushing, and barbershop visits keep it from looking unkempt.
Best styles: Viking beard, yeard, wizard beard.
Best Beard Length for Your Face Shape
Face shape factors into how length flatters you. A balanced oval silhouette reads most naturally, and the right beard length helps you get closer to it.
| Face Shape | Best Length | Key Tips | Avoid |
|---|---|---|---|
| Round | 10 to 25 mm | Keep sides short, add length at the chin | Very short stubble |
| Oval | Any length | Most versatile shape, experiment freely | Nothing specific |
| Square / Angular | 1 to 7 mm | Short beard softens the jawline; let the chin run slightly longer | Wide boxed beards |
| Oblong / Long | 6 to 15 mm | Keep sides fuller for width; a mustache balances things out | Extra chin length |
| Triangle / Pear | 12 to 25 mm | Full beard adds width at the jaw | Clean shaven |
| Heart / Inverted Triangle | 6 to 15 mm | Short full beard adds chin width and weight | Excessively long |
Grooming Routines at Every Length
The length only looks right if you back it up with the right routine. By managing moisturizing and trimming frequency, brushing and cleansing on a schedule, you can ensure the style you pick works for you. And whether you're at 2 mm or 20 mm, the neckline rule always applies: trim about an inch above your Adam's apple. This one routine will keep you from rocking the dreaded neckbeard.
0.5 to 3 mm (shadow & stubble)
Trim with a 0 or 1 guard every 1 to 2 days. A lightweight beard oil soothes the skin and stops the sandpaper feel that shows up close.
4 to 6 mm (heavy stubble)
Trim every 2 to 3 days with a #2 guard. Exfoliate once or twice a week to prevent ingrown hairs. Keep the cheek lines and neckline clean. This length lives and dies on its edges.
6 to 12 mm (short beard)
Trim with a #2 to #4 guard one to two times per week. Daily beard oil is essential, as the skin beneath starts drying out at this length. Be mindful to keep a clean neckline.
12 to 25 mm (medium beard)
This is the most demanding length on the chart for upkeep. Trim at least once a week. Use a soft boar-bristle brush daily to train the growth direction. Add beard balm for shaping.
25 to 75 mm (long beard)
Wash 2 to 3 times per week with a dedicated beard wash, followed by beard conditioner. Apply beard oil and brush daily. You may treat yourself to a monthly visit to the barber for a shape-up and split-end cleanup.
75 mm+ (Viking / yeard)
Conditioning is the whole game. Beard oil every day, beard butter every few days, and a wide-toothed comb for detangling. You may even consider beard braids, or, at these lengths, a gentle, heated brush can tame an otherwise unruly beard for a more intentional look.
Frequently Asked Questions
What is the most attractive beard length?
Studies tend to land on heavy stubble (4 to 6 mm) and short beards (6 to 12 mm) as the most universally attractive lengths. That said, fit and grooming beat length every time. A clean 15 mm medium beard beats a scraggly 5 mm stubble on the same face.
How long is a 3mm beard?
About 1/8 inch. It sits at the upper end of light stubble, about 5 to 7 days of growth for most guys. It lines up with a #1 guard on most clippers.
How long is a 10mm beard?
About 3/8 inch. Short beard territory, just past heavy stubble. It's the classic #3 guard length and takes around 3 to 4 weeks to grow out from a clean shave.
What guard number is a short beard?
On most clippers, a short beard falls between guards #2 and #4 (6-13 mm). The #3 guard (10 mm) is the sweet spot for guys who want full enough to look intentional, short enough to stay neat.
How long does it take to grow a full beard?
Beard hair grows about 12 to 15 mm (around 0.5 inches) per month. A short beard takes 2 to 4 weeks. A medium full beard needs 1 to 2 months. A genuinely long beard needs at least 6 months, with some guys hitting a full year before reaching their target length.
What is a "yeard"?
A yeard is a beard grown and minimally trimmed for a full year. At average growth rates, a yeard hits 150 mm (6 inches) or more. It's less about a specific length and more about the commitment to a year of uninterrupted growth.
Sources:
Hair Thickness & Genetics | 23andme
