Buzz Cut Simulator: Know Before You Shave It
Upload one selfie and see a buzz cut on your own head, not a stranger's, before the clippers touch anything. It answers the question you're actually asking: would a buzz cut suit you, given your face and your hairline, not someone else's.
Four ways to go short, from a soft crew cut to a full shave. Every one renders on your own selfie the same way.
What a Buzz Cut Actually Exposes
Every other haircut leaves something to style. A buzz cut leaves nothing. At a quarter inch or less, there's no length to comb over a cowlick, no fringe to soften a wide forehead, no volume to balance a narrow jaw.
What shows once the hair is gone: the real shape of your skull, the size and set of your ears, your full hairline (including the parts a side part used to cover), and any scars or marks near your scalp. None of that reads the same in a mirror as it does in a photo. That gap is exactly why a preview matters more here than on almost any other cut.
Long or short hair still hides
Length, volume, and a part can soften almost any feature. It's a built-in safety net, and it's the first thing a buzz cut removes.
A buzz cut has no safety net
Bone structure carries the whole look. That's not a bad thing for most faces, but it's worth seeing before you find out in a barber's mirror.
Buzz Cut Face-Shape Verdicts, By Style
Not all buzz cuts are the same cut. The difference between a full shave and a crew cut is about an inch of length on top, and that inch changes which face shapes it flatters. Here's what the compatibility data behind our catalog says, style by style:
| Style | Best for | Also good | Skip if | Trim cycle |
|---|---|---|---|---|
| Buzz Cut | Oval | Heart, Diamond, Square | Round, Long | ~2 wks |
| Crew Cut | Oval, Round, Square | Heart, Diamond, Triangle | Long | ~3 wks |
| Shaved Head | Oval | Heart, Diamond | Round, Long, Square, Rectangle | ~1 wk |
| Bleached Buzzcut | Oval, Diamond, Heart | Long, Inv. Triangle | Round, Square | ~3 wks |
Read the table sideways and one thing stands out: round and long faces are the two shapes every plain buzz or full shave lists as a skip. The crew cut is the exception built for exactly this. Keep about an inch of length on top, and a round face moves from "skip" to "best." If your face is round, or noticeably longer than it is wide, that inch is the difference.
Square faces have more room than most people guess: a plain buzz cut lists as good, a crew cut as best. It's the fully shaved head that gets risky, since zero length anywhere can make an angular jaw read even wider.
And if your face is long, the one buzz-family style rated good for you is, unexpectedly, the bleached one. High-contrast color reads as width. It's built to work with a long face instead of against it, which a plain buzz cut isn't.
Thinning, Receding, or Balding? The Real Buzz Decision
A lot of people land on a buzz cut simulator already worried about hair loss, not styling. The right move depends on which kind you're dealing with, and it's not the same answer for all four.
General thinning, still full coverage
A buzz is the most forgiving length here. Once hair is this short, density stops reading as thin, because there's no length left to move oddly or catch light unevenly. Verdict: go shorter, not longer.
Receding hairline (temples, an M-shape)
A defined hairline, like a hard fade or a crisp side part, draws a line exactly where your hairline used to sit. Buzzing it short blurs that line instead of framing it, which is why a buzz often reads as a choice, not damage control. Verdict: buzz cut helps. Crew cut if a full buzz feels like too much at once.
Thinning at the crown and temples together
This is the one case where a full shave usually beats a buzz. Cutting hair down to a quarter inch over uneven, thinning patches can look patchier than removing it completely. A shaved head reads as one deliberate length, everywhere. Verdict: shave beats buzz.
Naturally thin or fine hair, not balding
Fine hair looks sparse at almost any length, because there's less of it to catch light and cast shadow. Cut it short enough and that stops mattering. Every style in this catalog family is rated to work with every hair texture. Verdict: texture isn't the obstacle here, length is the only decision.
For the fuller picture beyond this one cut: hairstyles for thinning hair and haircuts for a receding hairline cover the whole range of styles, not just the buzz-family options on this page.
Buzz Cuts for Women
The buzz cut isn't only searched by men. Our women's catalog carries the same cut, filed under Pixie & Short, with nearly the identical face-shape profile: best on oval, good on heart, diamond, and square, a style to reconsider if your face is round or long.
The stakes feel different (a woman's buzz cut tends to read as a bigger statement) but the grow-out math is identical. If you're weighing a shorter cut but aren't sure a full buzz is the right stop, see yourself with short hair covers everything from a shoulder-grazing lob down to this.
Clippers or a Barber? What the Guard Numbers Mean
A buzz cut is the one haircut you can do yourself with a $30 clipper set, which is exactly why it's also the one haircut where a five-minute mistake is hardest to hide. There's no extra length to cut into afterward and blend an uneven patch away.
| Guard # | Length | What it means |
|---|---|---|
| 0.5 / 1 | 1.5–3mm | The shortest clipper guards. A true shaved head still needs a razor pass after this to get skin-smooth. |
| 2 | 6mm | The classic all-over buzz cut length. |
| 3 | 10mm | Slightly softer buzz, still very short. |
| 4 | 13mm | Where a crew cut's top usually starts. |
| 6 | 19mm | About as long as this cut family goes. |
At a barber, the guard number does the talking. Say the number, not "short": a 2 all over means something exact, "pretty short" doesn't. For a crew cut's slightly longer top, ask for a 4 on top blended into a 1 or 2 on the sides, not one all-over number.
Doing it yourself for the first time, go one guard longer than you think you want. You can always go back over it shorter in the same sitting. You can't add the hair back if you go too far.
One Photo, Three Steps
Upload one clear selfie
Face the camera with your hairline and ears visible. The AI needs to read your real skull shape and hairline, not a photo hidden under a hat.
Pick a buzz style
Buzz Cut, Crew Cut, Shaved Head, or Bleached Buzzcut. Every one renders on your own photo, not a stock model.
Compare before you book
Screenshot the one that works. It becomes the only reference your barber needs for this particular cut.
Not sure a buzz is even the right move? Upload one selfie to the get free AI haircut suggestions and get your 4 best matches in about 30 seconds — free.
Frequently Asked Questions
Is there a free buzz cut simulator?
Yes. Upload one selfie to HaircutAI and it renders a buzz cut, crew cut, shaved head, or bleached buzzcut on your own face, in your own photo, in about 10 seconds. It works in the browser at haircutai.app and as a free iOS app. Trying the full catalog at high resolution is part of the premium plan, a small bet next to a cut you can't undo with a comb.
Will a buzz cut filter actually look like my head, or a generic wig?
A filter or camera overlay pastes a pre-made buzz cut graphic over your live video, and it never matches your actual skull shape or hairline. HaircutAI re-renders your photo instead: it reads your real hairline, ear position, and hair color, then removes the hair the way clippers would. What you see is closer to a photo of your own head shaved than a costume effect.
What face shapes should avoid a buzz cut?
A true buzz cut or full shave is listed as a skip for round and long (oblong) faces in our catalog, because zero length removes any tool for adding height or width. That's not a hard no, though: the crew cut keeps about half an inch to an inch on top and is rated best for round faces and good for most others. If your face is round or notably longer than it is wide, start there instead of a full shave.
Does buzzing your head help or hurt thinning hair?
It depends on where the thinning is. General density loss looks better short, because there's no length left to reveal gaps. A receding hairline usually looks more intentional buzzed, since a hard edge (like a fade) is what actually draws attention to a moving hairline. Advanced thinning at the crown and temples together is the one case where a full shave typically reads cleaner than a buzz, since a shave removes the length variation that can make thin patches look patchy.
Can women use the buzz cut simulator?
Yes. Our catalog includes a women's Buzz Cut with its own face-shape data, and the tool renders it the same way it renders every other style: on your actual photo. If you're not sure a full buzz is the right stop, the see-yourself-with-short-hair guide covers every length between a shoulder-grazing lob and this one.
How long does it take to grow out a buzz cut?
Hair grows roughly half an inch a month for most people, so a buzz cut needs about 4 to 6 months before there's enough length to style, and around 2 to 3 years to reach shoulder length. Every stage in between is effectively a different haircut you didn't choose, which is the real cost of a buzz cut: not the cut itself, but how long you're committed to whatever it grows into.
What guard number is a buzz cut?
A classic buzz cut is usually a guard 2 all over, about a quarter inch. A guard 0.5 or 1 is closer to a shaved head, and a guard 4 or higher starts to look more like a crew cut than a true buzz. Saying the number to your barber removes the guesswork that words like "short" or "very short" leave behind.
See It Before You Shave It
One selfie, four buzz styles, about ten seconds. If it's wrong, it's wrong on a photo you can delete, not on your head for the next six months.