Canthal tilt test
Canthal tilt is the angle of the line from the inner corner of your eye (medial canthus) to the outer corner (lateral canthus). Outer corner higher = positive tilt; level = neutral; outer corner lower = negative. It is one of the most-discussed eye-area measurements online, and almost impossible to judge accurately in a mirror.
This test measures the angle in degrees from one front-on photo, with the line drawn on your own eyes so you can see exactly what was measured. It is a descriptive measurement against published ranges — not a rating.
No account. Photos are analyzed then immediately discarded — never stored, never used for training.
How it works
- Drop one front-on photo with both eyes open and a level head.
- The engine locates your four eye corners among 478 landmarks and computes the angle.
- See your tilt in degrees — positive, neutral or negative — drawn on your photo.
Frequently asked questions
What is a normal canthal tilt?
Most faces measure between roughly −2° and +8°. Mildly positive (about +2° to +6°) is common and often cited as the typical range in the literature; a few degrees either side is unremarkable.
Is negative canthal tilt bad?
No. A slightly negative tilt is common and usually imperceptible in normal interaction. Large negative tilts can read as tired in photos, but head tilt, camera height and a smile all shift the apparent angle more than people expect — measure from a level, neutral photo before concluding anything.
Can canthal tilt be changed?
Non-surgically, no — it is set by the position of the canthi. What you can control is how it photographs: camera at eye level and a level head give the honest number. Surgical canthoplasty exists but is a medical decision far beyond a photo measurement.
Is my photo stored?
No. Photos are analyzed and immediately discarded — never stored, never used for training.