Upload a front-facing photo and our AI instantly measures left-right symmetry across 8 facial zones — eyes, eyebrows, mouth corners, cheekbones, nostrils, and jaw angles.
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A facial symmetry test measures how closely the left and right halves of your face mirror each other. Every face is a little asymmetrical — one eye sits slightly higher, one side of the jaw is slightly wider, the nose leans a few degrees — and most of these differences are too small to notice in person. A symmetry test makes them measurable.
This free face symmetry analyzer works like a symmetrical face calculator: it measures eight pairs of features on your face, gives you a symmetry score out of 100, and shows a zone-by-zone breakdown so you can see which features are most and least balanced.
When you upload a photo, the analyzer runs Google's MediaPipe Face Mesh in your browser — your photo isn't uploaded — and places 478 landmarks on your face. It then:
The eight zones it checks:
| Zone | Landmarks compared |
|---|---|
| Outer eye corners | Where your upper and lower lids meet at the outside of each eye |
| Inner eye corners | The corners of your eyes nearest your nose |
| Eye height | The highest point of each upper eyelid |
| Eyebrow arch | The peak of each brow |
| Mouth corners | The left and right corners of your lips |
| Cheekbones | The widest point of each cheekbone |
| Jaw angles | The corners of your jaw below each ear |
| Nostrils | The outer edge of each nostril |
Your results show each zone's deviation as a percentage, plus your most and least symmetrical features.
| Score | Result | What it means |
|---|---|---|
| 90–100 | Highly symmetric | Exceptional balance across all eight zones |
| 78–89 | Mostly symmetric | Good balance with minor differences — a very common result |
| 65–77 | Moderate asymmetry | Measurable differences in a few zones; still well within normal |
| Below 65 | Notable asymmetry | Larger differences in some zones — check your photo angle first |
A low score is far more often caused by the photo than by your face. Even a slight head turn moves every feature on one side closer to the midline, which reads as asymmetry.
Symmetry is one of the most studied factors in facial attractiveness. Research by Gillian Rhodes and others has found that people prefer more symmetrical versions of the same face, and evolutionary psychologists have suggested that symmetry signals healthy development.
But the effect is smaller than its reputation, for a few reasons:
Treat a symmetry score of 78 or above as good, and don't worry about chasing 100.
If your face looks "wrong" in photos, asymmetry is usually the reason. You mostly see your face in a mirror — flipped left to right — so you're used to that version. A photo shows the unflipped face other people see, and any asymmetry appears on the "wrong" side. A 1977 study by Mita, Dermer and Knight found that people preferred mirror images of their own faces, while their friends preferred the true image. Neither version is more attractive; you're just more familiar with one.
Most asymmetry is a normal part of how faces grow:
Important: if part of your face suddenly droops or becomes asymmetrical — especially with slurred speech, arm weakness or confusion — call emergency services immediately, as it can be a sign of stroke. Sudden one-sided facial weakness can also be Bell's palsy, which also needs a doctor.
Claims that mewing, face yoga or sleeping position will noticeably fix adult facial asymmetry don't have good evidence behind them.
Upload a straight-on, neutral-expression photo to this test. It finds your facial midline, measures eight pairs of features — eyes, brows, mouth corners, cheekbones, jaw angles and nostrils — and gives you a symmetry score out of 100 with a zone-by-zone breakdown.
Yes. It calculates how symmetrical your face is by comparing the distance of eight left–right feature pairs from your facial midline and combining them into a symmetry score.
A score of 78 or above is good and very common. 90 or above is exceptional. Scores between 65 and 77 show moderate asymmetry, which is still completely normal.
No. Every human face has some asymmetry. Perfectly symmetrical faces made by mirroring one half of a face often look unnatural.
Somewhat. People tend to prefer more symmetrical versions of the same face, but the effect is modest, and features like averageness, skin quality and expression often matter more.
Because you usually see your face flipped in a mirror. Photos show the unflipped version, so any asymmetry appears reversed and looks unfamiliar. Head angle and close-up lenses also exaggerate asymmetry.
Photo technique and grooming fix most of what people notice. Structural asymmetry from bite or jaw problems can be treated with orthodontics or surgery, and soft-tissue asymmetry with cosmetic treatments. Mewing and face exercises don't have good evidence for fixing adult asymmetry.
Yes. It's free, needs no account, and analyses your photo in your browser.