1. Level the eye line
A small sideways head tilt can make every pair look uneven. The test rotates the landmark map to the detected eye line before calculating differences.
FREE FACE SYMMETRY TEST
Facial Symmetry Test — See How Your Left and Right Sides Line Up
Upload one clear, front-facing photo for a facial symmetry test. We turn the left-right landmark gap into a simple balance score, then show which feature groups differ most.
No signup. Your photo never leaves your device.
Pairing facial landmarks
Analysis in progressPairing facial landmarks
SampleThe guide is measured from this sample photo.
Generated sample · measured with this face tool
01 · THE BASICS
What Is a Face Symmetry Test?
A facial symmetry test compares paired points on the left and right sides of a face across a fitted vertical midline. Eyes, brows, nose, mouth and the visible outline are not perfectly identical in real life, so the useful question is how closely they line up in this particular photo, not whether a person passes or fails a universal beauty rule.
The result starts with a left-right balance score on this site's 0–100 display scale. Beneath it, the measured gap shows how far paired landmarks sit from the fitted midline, followed by a breakdown by feature group. A higher score means the landmark map is closer to a mirror image after the photo is levelled.
02 · THE MEASUREMENT
How This Test Measures Symmetry
The measurement happens in your browser and the photo never leaves your device. It uses the same on-device facial landmark pipeline as the other tools, corrects sideways head roll, estimates a robust centerline from paired landmarks and compares each left-right pair after reflection.
2. Estimate the facial midline
The centerline is estimated from the middle of many corresponding landmark pairs rather than trusting one point. This reduces the effect of a single noisy landmark.
3. Reflect and compare
Each left point is reflected across that midline and compared with its partner on the right. The gap is the residual distance divided by visible cheek width, reported as a percentage of that width.
4. Group the result
Eyes, brows, nose, mouth and outline receive separate measured gaps and readable balance scores. The balance score is a display conversion for this product, not a beauty score, population percentile or clinical reference range.
03 · SCORE BANDS
What's a Good Face Symmetry Score?
There is no universal good score or clinical cutoff for a single face photo. These neutral bands explain how to read this site's display scale: they describe geometric alignment in the image, not a ranking of people. Use the same photo setup when comparing a retake or tracking a change.
| Score range | What it describes |
|---|---|
| 90–100 | Very close match — paired landmarks sit close to the fitted reflected position. |
| 80–89 | Close match — the photo shows small measurable left-right differences. |
| 70–79 | Noticeable difference — one or more feature groups sit farther from the reflected position. |
| 0–69 | Large difference — the photo has larger residual gaps or less even landmark alignment. |
This is face-rating.net's display scale. The score describes geometric alignment in this photo; it does not represent attractiveness, health, value or a population percentile.
04 · FEATURE GROUPS
What the Feature Groups Show
The groups are a way to read the photo, not a ranking of which facial feature matters more. A high difference can come from expression, lighting, hair, glasses, pose or landmark uncertainty as well as natural asymmetry.
| Feature group | What it compares | What distorts it |
|---|---|---|
| Eyes | Inner and outer corners plus upper and lower eye landmarks. The canthal tilt test measures each eye-corner angle separately. | Squinting, eyeliner, lashes and glasses can move or hide these points. |
| Brows | Several paired landmarks along the visible brow line. | Raised brows, uneven expression, fringe and makeup can change the map. |
| Nose | Bridge and side-of-nose points around the estimated centerline. | Close selfie perspective and head turn can change the apparent width. |
| Mouth | Corners and paired points along the lip contour. | Smiles, speech and a relaxed-versus-tense expression can dominate this group. |
| Jaw & outline | Paired cheek and jaw contour points on the visible outer shape. For lower-face width and angles, see jawline rating. | Hair, beard, shadow, crop and partial occlusion can hide the edge. |
05 · PHOTO QUESTION
Is My Face Symmetrical?
This tool does not give a yes-or-no verdict about your face. It measures selected left-right landmark pairs in one image and shows a balance score plus the gap behind it. A result is a description of this photo, not a permanent label for you.
The most useful comparison is between photos made with the same distance, head position, expression and light. If you are concerned about a new physical change or a change in movement, seek a qualified clinician rather than relying on a photo score.
06 · BOUNDARIES
Why Perfect Symmetry Is Not the Goal
Human faces are not manufactured as exact mirror images. Small left-right differences are normal, and a high balance score in one photo does not mean a person is more attractive, healthier or more valuable. Symmetry is one piece of visual language alongside expression, proportion, familiarity and personal preference. The golden ratio face calculator describes proportions separately from left-right balance.
Use the breakdown to understand what changed between two photos or to learn how pose affects a portrait. Do not use the result to diagnose a condition or to decide that one side of your face needs to be corrected.
07 · PHOTO LIMITS
Why Photos Distort Symmetry
A two-dimensional image mixes facial structure with camera perspective. Head turn, camera height, close selfie distance, side lighting and expression can all make one side appear different. A close phone camera can enlarge nearby features, while a turned head, uneven light or an expression can move visible landmarks. The test corrects roll, but it cannot fully remove yaw, pitch, lens distortion or occlusion. That is why a single image measures the image, not the face in every situation.
GET A CLEANER RESULT
Your photo setup matters
A consistent photo gives the measurement a cleaner starting point. Keep these four conditions steady when you retake or compare a result.
01
Keep the head level
Face the lens directly with a relaxed expression so paired landmarks can be compared consistently.
02
Leave some distance
Stand at least an arm’s length away and crop later. Close selfies change relative feature size and make comparisons less stable.
03
Use even front light
Soft light from in front of you keeps both sides visible and reduces shadows that can move the detected landmarks.
04
Keep the landmarks clear
Move hair, glasses and anything reflective away from the eye area when possible. Keep the same setup if you compare another photo.
08 · RESEARCH
What the Research Says
Research does not support turning a photo symmetry score into an attractiveness grade. Kowner's four experiments found that low-level facial asymmetry did not reliably change attraction choices in the studied groups; the work used paired-photo choices rather than a universal rating scale, so we do not create a normal-person cutoff from it. Zaidel and Cohen also showed that faces judged beautiful can be asymmetric, although their model sample and mirror-composite method do not establish that less symmetry is better.
A cross-cultural study by Kleisner and colleagues found distinctiveness and femininity, rather than symmetry and masculinity, affected attractiveness across the studied populations. A 2025 Scientific Reports replication likewise found averageness and femininity predicted judgments in its samples. Jones and colleagues provide a separate experimental account in which increasing averageness can raise attractiveness independently of symmetry. These results are about particular stimuli and rating tasks, so we do not describe a high balance score as a beauty result.
Facial asymmetry is common in the overall population and is often subclinical, according to a clinical review by Thiesen and colleagues. We do not publish a percentage because this tool has no representative population sample. Ward and colleagues found that short-distance selfie photography can enlarge the apparent nose-to-face-width relationship; we therefore treat this as a photo-specific geometry reading.
Sources and limits
Kowner (1996), Journal of Experimental Psychology: Human Perception and Performance 22(3):662–675 — Four experiments using paired-photo choices, not a universal score scale; we do not infer a normal range or attractiveness cutoff.
Zaidel & Cohen (2005), International Journal of Neuroscience 115(8):1165–1173 — Used attractive model-library faces and mirror composites; we do not treat the result as a population rule or claim that asymmetry is preferable.
Kleisner et al. (2024), Evolution and Human Behavior 45(1) — Cross-cultural geometric morphometrics, not ordinary photo scoring; we do not generalize its findings to every face or context.
Lee et al. (2025), Scientific Reports 15 — A recent replication focused on averageness, femininity and selected rating tasks; it does not define an individual target score.
Jones et al. (2007), Perception & Psychophysics 69(8) — Two-dimensional experimental face-shape manipulations in a student sample; we do not turn the mechanism into a beauty formula.
Thiesen et al. (2015), Dental Press Journal of Orthodontics 20(6):110–125 — A clinical review with orthodontic emphasis, not a representative prevalence survey; we publish no population percentage.
Ward et al. (2018), selfie distortion study — A small short-distance photography study focused on nasal distortion; we use it to explain camera limits, not to infer facial structure.
Little, Jones & DeBruine (2011), Philosophical Transactions of the Royal Society B 366(1571):1638–1659 — Frames symmetry as one cue among expression, averageness, familiarity and preference; we do not reduce appearance to one number.
COMMON QUESTIONS
Frequently Asked Questions
Quick answers before you test another photo.
What is a face symmetry test?
A facial symmetry test compares selected paired landmarks around a fitted facial midline. This page shows a simple left-right balance score, the measured gap behind it and a breakdown across eyes, brows, nose, mouth and the visible jaw outline.
What does my balance score mean?
On this tool, a higher balance score means the selected left and right landmark pairs sit closer to a reflected mirror position in the photo. It is a product-specific display conversion, not a population percentile or clinical scale. The measured gap is the residual landmark distance divided by visible cheek width and shown as a percentage. Check the gap and the photo conditions before comparing two results.
Is facial asymmetry normal?
Yes. Small left-right differences are normal human variation. Photo angle, expression, light, hair and landmark uncertainty can add more visible difference.
Does facial symmetry equal attractiveness?
No. Symmetry can influence how a particular image reads, but attractiveness depends on many features and individual preferences. This tool is not an attractiveness score.
How accurate is this face symmetry test?
A facial symmetry test is a photo-based styling and geometry estimate, not a validated clinical instrument. The result is most useful when you keep the head straight, use even light and compare photos made under similar conditions.
Why does my result change between photos?
Different head angles, camera distance, lens distortion, lighting, expression, glasses and hair can move the detected landmarks. A new photo can therefore produce a different result without any underlying change.
What does the centerline overlay show?
It shows the estimated vertical axis used to reflect one side of the detected landmark map. The paired dots and lines show the landmarks included in the visible comparison.
Can this test diagnose facial asymmetry or a medical condition?
No. It cannot diagnose, rule out or monitor a medical condition. If you have a new or concerning physical change, speak with a qualified clinician instead of relying on a photo tool.
Does the test upload my photo?
No. Face landmarks and symmetry differences are calculated in your browser. Your selected photo never leaves your device and disappears when you clear it or close the page.
How should I take a symmetry test photo?
Face the camera directly with your chin level, use soft even light, relax your expression, remove glasses if they hide the eye corners and keep the full face visible.
What's a good face symmetry score?
There is no universal good score or clinical reference range. Use the neutral bands in the score table to understand this site's display scale, then compare two photos made with the same setup if you want to track a change. The labels describe geometric alignment in one image, not attractiveness, health or value.
Is facial asymmetry rare?
We do not have a representative population sample, so we do not publish a percentage or distribution claim. This tool reports a photo-specific reading, not a population estimate.
Is my face symmetrical?
This tool does not give a yes-or-no judgment. It measures selected left-right landmark pairs in one image and reports a balance score plus the measured gap. Use a consistent retake for comparison, and speak with a qualified clinician about a new or concerning physical change.