How the face symmetry test measures you
Facial symmetry means the left and right halves of the face mirror each other. To measure it, the test needs two things: a midline and pairs of points that should mirror each other across it.
- Straightening. The photo is rotated in memory so your eyes are level, which removes simple head tilt.
- The midline. The test takes 22 points that run down the centre of the face, from the forehead through the nose bridge, nose tip and lips to the chin, and uses their middle position as the midline.
- Mirrored pairs. It compares 24 pairs: outer and inner eye corners, upper and lower eyelids, pupils, brow ends, cheekbones, nostrils, mouth corners, lips, jaw angles and points along the jawline.
- The score. For each pair it measures how far the two points are from being perfect mirror images, in both height and distance from the midline, relative to the distance between your pupils. The average gives your symmetry percentage.
The dashed pink line on your photo is the measured midline. If it runs down the centre of your nose and chin, the measurement is well aligned.
Facial symmetry test results explained
| Symmetry | Meaning |
|---|---|
| 90% and above | Very symmetrical. Differences between the sides are tiny. |
| 85% – 89% | Very symmetrical, with small natural differences. |
| 75% – 84% | Typical natural symmetry. Most faces land here. |
| Below 75% | Noticeable differences between the sides, or a turned head in the photo. Retake straight-on to check. |
The mirrored face previews
“Right side mirrored” shows the right half of your face joined to its own reflection; “Left side mirrored” does the same for the left half. If your face were perfectly symmetrical, both would look identical to your photo. In reality the two previews often look like siblings: one may look wider, one narrower, one more cheerful. That difference is your asymmetry made visible.
Where asymmetry usually shows
- Eyes and brows: one eye slightly higher or more open, one brow arched more.
- Mouth: a smile that lifts one corner more than the other.
- Jaw: one side fuller, often from chewing habits or sleeping on one side.
- Nose: a tip that points a little to one side.
How to take a fair face symmetry test
- Face the camera squarely. A head turn of only a few degrees can cost ten points.
- Use light that falls evenly on both sides. Light from one side makes that side look larger.
- Pull your hair behind your ears so both sides of the jaw and cheeks are visible.
- Keep a neutral expression. Smiles are rarely symmetrical.
- Do not use a mirrored selfie and an unmirrored photo to compare; mirroring swaps sides but does not change the score.
Why facial symmetry matters for attractiveness
Symmetry is one of the most studied factors in facial attractiveness. Across many cultures, people rate more symmetrical faces as somewhat more attractive, and one explanation is that symmetry signals healthy development. That is why symmetry gets the largest weight, 25%, in the main attractiveness test.
But perfect symmetry is not the goal. Faces that are artificially made fully symmetrical often look unnatural or even uncanny. Small asymmetries are part of character, and many famous faces have them.
Can you improve facial symmetry?
For photos, mostly yes: straight-on angles, even light and a relaxed expression make a big difference. In daily life, a few habits can help over time, such as chewing on both sides, avoiding always sleeping on the same side, and keeping an upright posture. Hairstyles and parting can balance a face visually. Large asymmetries that appear suddenly, especially with weakness or drooping on one side, are a reason to see a doctor straight away.