Facial symmetry test: how to check if your face is symmetrical
Updated September 27, 2026 · By the RateMyFace AI team
To test facial symmetry, take a straight-on photo at eye level in even light, then compare the left and right side of your face — eye height, brow shape, nostrils, mouth corners and jaw. A symmetry score of 8/10 or higher is excellent; nobody is perfectly symmetrical.
Why symmetry matters (and why perfect symmetry doesn’t exist)
Symmetry is one of the first things people subconsciously notice in a face. It reads as balance and health. But every real face is slightly asymmetric — one eye a little higher, a stronger side of the jaw, a brow that arches differently. Small differences are normal and often give a face character.
How to do a facial symmetry test at home
- Take a straight-on photo. Camera at eye level, face the lens directly, neutral expression, hair off the face.
- Use even lighting. Light from one side creates fake asymmetry with shadows.
- Draw a vertical midline through the center of the forehead, nose and chin (any photo editor works).
- Compare features across the line: eye height and size, brow height, cheekbone position, nostril width, mouth corners and the angle of each side of the jaw.
- Check the horizontal lines: are the eyes, brows and mouth roughly parallel?
What a symmetry score means
An AI symmetry score compares matching points on both sides of the face. As a rough guide: 9+ is exceptionally balanced, 7.5–9 is noticeably symmetrical, 6–7.5 is typical, and lower scores usually mean the photo angle or lighting is off — or there’s a visible difference worth working on.
Things that make a face look less symmetrical (that you can change)
- Posture and head tilt — a tilted head is the most common cause of a low score.
- Uneven brows or beard line — grooming both sides to the same shape makes a big difference.
- Sleeping on one side and chewing on one side can affect puffiness and muscle balance.
- Hair parting — a heavy side part can hide or exaggerate asymmetry.
Common mistakes
- Using the front camera’s mirrored preview and a wide-angle lens very close to the face.
- Smiling — most smiles are naturally asymmetric.
- Judging from a single photo; take two or three and compare.
How RateMyFace AI helps
RateMyFace AI includes a dedicated symmetry score alongside jawline, eyes, skin and more, so you can see symmetry in context. Rescan after fixing posture or grooming and watch the score on the progress chart.
Try it on your own face
Add a front selfie and a side profile to get your score, feature breakdown and a personal plan in about a minute. Your first rating is free.
Download on theApp StoreFrequently asked questions
Is it normal for one side of my face to look different?
Yes. Every face is slightly asymmetric, and most people have a ‘better side’. Small differences are normal and usually not noticeable to others.
Can you improve facial symmetry?
You can reduce how asymmetric you look with even grooming, good posture, a straight head position in photos and balanced sleep and chewing habits. Bone structure itself doesn’t change with exercises.