Free · runs on your device
Face symmetry test
How symmetric your face is, measured point by point across mirrored landmark pairs — with the biggest contributors named. Nobody scores 100%, and the breakdown is more interesting than the number.
CostFree
TimeUnder 1 min
SignupNone
DataStays on device
478-point landmark map
Step 1 of 2 · your photo
Add a photo to measure
Face the camera straight on, hair off the face, even light, no tilt.
How it works
Add your photo
Camera or upload — either works.
Mapped in your browser
478 landmarks, entirely on your device.
Your measured result
Numbers and lines drawn on your photo.
On-device · never uploaded
478 landmarks
Free · no signup
The science
How facial symmetry is measured — and what it actually means
01
This tool finds the midline of your face from landmark geometry, then compares mirrored pairs of points — eye corners, brows, nostrils, mouth corners, jaw — measuring how far each pair deviates from perfect mirror placement. The deviations are normalized by your face width and combined into a symmetry percentage, with the largest contributors named so you can see where the asymmetry lives.
02
Here is the context the score needs: nobody is symmetric. Studies that measure real faces find visible asymmetry in essentially everyone, and faces made artificially perfect by mirroring one half consistently look uncanny rather than attractive. Typical faces land in the 85–95% range on a measure like this one; small asymmetries in the jaw and brow are the human default.
03
Camera honesty matters too: a slight head turn or a lens close to your face adds apparent asymmetry that is not on your face. Shoot straight-on, at arm’s length or more, with even light — and treat the point-by-point breakdown as the interesting part, not the single number.
What the research actually says about symmetry
Symmetry is the most-studied single variable in facial attractiveness research, and the findings are more modest than the internet version: meta-analyses (Rhodes 2006 is the standard reference) find a reliable but moderate preference for more symmetric faces — alongside equally strong effects for averageness and skin condition. Crucially, the preference holds for natural variation; artificially perfect faces made by mirroring one half consistently rate as strange rather than beautiful, because normal faces are asymmetric and observers are calibrated to that.
Your percentage should be read against the population, not against 100: typical straight-on photos of real faces measure in the high-80s to mid-90s on a landmark measure like this one. The per-feature breakdown is the useful part — knowing your asymmetry concentrates in, say, the brow line is actionable (brow grooming evens the read in minutes); knowing your jaw carries a couple of percent tells you what every human jaw carries.
Asymmetry causes: the benign list
Nearly all facial asymmetry is developmental noise — the two face halves grow semi-independently and never match perfectly. On top of that baseline: habitual chewing side develops one masseter slightly more, side-sleeping and posture can contribute marginally over decades, and dental work or tooth loss shifts the lower face. The medical exceptions are sudden-onset asymmetry (facial droop appearing over hours or days is an emergency — that is nerve, not geometry) and progressive jaw deviation, which is orthodontic. A stable, lifelong couple-of-percent asymmetry — what this tool almost always finds — is the human condition.
FAQ
Common questions
What is a normal face symmetry score?+
Most straight-on, well-lit photos of real faces score in the 85–95% range here. Below that usually means head tilt or uneven lighting before it means facial asymmetry — reshoot before you re-conclude.
Is a perfectly symmetrical face more attractive?+
Less than the internet claims. Research finds mild preference for symmetry, but artificially perfect mirrored faces consistently rate as unnatural. Character lives in the asymmetry.
Can face symmetry be improved?+
Mostly no, and mostly it does not need to be. Sleep position and chewing-side habits have marginal effects; significant asymmetry from jaw development is orthodontic territory. Cosmetically, brows and hair parting do more than anything else.
How can I make my face look more symmetric?+
The high-leverage fixes are styling: brows groomed to matching heights (the single biggest visual lever), a hair part on the side that balances your dominant asymmetry, and for makeup users, subtle contouring on the fuller side. Nothing topical changes the bone.
Is 85% symmetry bad?+
It is within the normal human band, especially if the photo had any tilt. Before reading anything into a mid-80s score, reshoot straight-on in even light — lighting and pose asymmetry routinely account for several points.
Why is my smile crooked but my resting face fine?+
Dynamic asymmetry — the two sides of the face are driven by nerves and muscles that rarely fire perfectly evenly, so expressions exaggerate resting asymmetries. A one-sided smile at rest is normal; a NEW one-sided droop is a medical matter.