Quick answer: no face is perfectly symmetrical. This test reflects one side of your face across its midline and measures how far each feature lands from its partner. Most people score 80–95%; small differences are normal and usually not noticeable.
How the Face Symmetry Test Works
You place 18 points on your photo: six along the middle of the face (forehead, brow, nose tip, nose base, lips and chin) and six matching pairs (eye corners, nose wings, mouth corners, cheekbones and jaw angles). The tool fits a midline through the central points, mirrors every left-side point across it, and measures how far it lands from its right-side partner. Distances are shown as a percentage of face width so the result does not depend on photo size.
The score combines the average mismatch of the pairs with how straight the midline points sit. It also reports which side of each feature is wider or lower.
How to Take a Good Photo for the Test
- Use a straight-on photo. Face the camera directly, with the camera at eye level, about an arm’s length or more away. A phone held close to the face distorts the nose and chin.
- Keep a neutral expression. Relax your face, close your mouth and look straight ahead. Smiles and raised eyebrows are rarely symmetrical.
- Use even light. Light from the front, such as a window behind the camera. Side light makes one half look different.
- Pull hair back. Clear the forehead, cheekbones and jawline so you can place the points accurately.
- Place points carefully. Zoom out the page if needed, drag each dot onto its feature, and use the arrow keys for fine adjustment.
How Symmetrical Is a Normal Face?
Studies measuring hundreds of faces find that everyone has small asymmetries, typically a few millimeters between the two sides. The left and right halves of the face develop separately, and chewing habits, sleeping position, dental work and minor injuries add more. Asymmetry of 2–3% of face width is usual; differences under about 3 mm are hard for observers to notice.
Left-Left and Right-Right Mirror Faces
The mirror views build two new faces: one from your left half and its reflection, and one from your right half and its reflection. They exaggerate small differences, which is why many people find both mirror faces look slightly unlike them. If the two composites look very different, that side-to-side difference is what the score is picking up.
Facial Symmetry and Attractiveness
Research finds that, on average, more symmetrical faces are rated a little more attractive, but the effect is modest. Averageness, skin quality and expression often matter as much or more, and perfectly symmetrical (mirrored) faces can look artificial. For proportions rather than symmetry, try the golden ratio face calculator.
What Causes Facial Asymmetry?
Common causes include genetics, uneven chewing, sleeping on one side, dental and jaw alignment, past injuries and natural aging. Sudden asymmetry, such as one side of the face drooping, can be a sign of a stroke or Bell’s palsy and needs urgent medical attention.
Face Symmetry FAQ
Is my photo uploaded anywhere?
No. The photo is opened directly in your browser and never sent to a server or stored. Closing the tab removes it.
What is a good face symmetry score?
Most people score between 80% and 95% on this test. Scores above about 92% indicate a very symmetrical face. Remember that photo angle and expression affect the result.
Is anyone’s face perfectly symmetrical?
No. Every face has some asymmetry. Even faces rated as very attractive differ slightly between left and right.
Does facial symmetry make you more attractive?
On average symmetry is rated slightly more attractive, but the effect is small, and other features such as averageness, skin and expression matter a lot.
Why does my mirror face look strange?
Mirror composites double one side of your face, which exaggerates small differences and removes the natural asymmetry people are used to seeing.
Can facial asymmetry be fixed?
Most mild asymmetry needs no treatment. Orthodontics, jaw surgery, fillers and other procedures can change asymmetry where there is a functional or strong cosmetic concern; talk to a dentist or doctor.
Sources
- Grammer K, Thornhill R. Human (Homo sapiens) facial attractiveness and sexual selection: the role of symmetry and averageness. Journal of Comparative Psychology. 1994;108(3):233–242.
- Rhodes G. The evolutionary psychology of facial beauty. Annual Review of Psychology. 2006;57:199–226.
- Thornhill R, Gangestad SW. Facial attractiveness. Trends in Cognitive Sciences. 1999;3(12):452–460.
For curiosity and education only. The result depends on the photo and point placement and is not a medical or aesthetic assessment.