Face Symmetry Test: How Symmetrical Is My Face?

The test finds 478 facial landmarks with Google's MediaPipe Face Landmarker, running locally in your browser. It then fits a midline through five central points (the top of the face, the forehead, the bridge of the nose, the nose base and the chin) instead of assuming the photo's vertical center is your face's center.

Twelve left-right landmark pairs are compared against that midline. For each pair, one point is mirrored across the line and the gap between the mirrored point and its real partner is measured. That gap is expressed as a percentage of how far the pair sits from the midline, so a wide jaw and a narrow mouth are judged on the same footing.

Each residual is converted to a 0–100 reading with a feature-specific curve, the pairs are averaged within their group, and the five groups are combined with fixed weights into one symmetry score.

A higher score means the measured pairs sit closer to a perfect mirror image in this photo. The bands below are reading aids for this tool, not medical categories and not a ranking of attractiveness.

No real face scores a flawless 100. Small left-right differences are universal, and a few points of difference between two photos of the same person is normal.

Most of the asymmetry a single photo shows comes from how the photo was taken rather than from bone structure. Before reading too much into a lower score, check these conditions:

• Head turn (yaw): even a few degrees makes the near side of the face look wider and pushes the jaw pairs apart.
• Head tilt and camera angle: a phone held below the chin lengthens the jaw and changes the brow pairs.
• Expression: a half smile, raised eyebrow or squint moves mouth corners and brow points independently.
• Lens distortion: close-up selfies with a wide-angle lens exaggerate whatever is nearest the camera. Hold the phone at arm's length or further.
• Lighting: strong side light can hide an eye corner or jaw edge and make landmark placement less precise.
• Hair and accessories: hair over one eyebrow or one side of the jaw hides the points the test needs.

Research on facial attractiveness often finds a modest preference for more symmetrical faces, but symmetry is only one factor and its effect is smaller than many people expect. Averageness, skin, expression, grooming and familiarity all matter, and perfectly mirrored faces made from one half of a photo usually look strange rather than better.

That is why this tool reports symmetry as geometry rather than as a beauty verdict. If you want to see how symmetry combines with facial proportions, open the full face report after your result or try the AI Attractiveness Test, which uses symmetry as one of four weighted measurements.

Use the same setup every time you want to compare results:

• Face the camera directly with your chin level and both ears equally visible.
• Keep a neutral, relaxed expression with your mouth closed.
• Use soft, even light from the front, such as a window behind the camera.
• Pull hair away from your forehead, brows and jawline.
• Take two or three photos and compare the readings rather than relying on one.

Symmetry compares the left and right halves of your face. Proportions compare distances down and across the face, such as the facial thirds and fifths measured by the Golden Ratio Face Test. Eye-corner angles are measured separately by the Canthal Tilt Calculator. Each answers a different question, so a face can score high on one and lower on another.