00Canthal tilt
Canthal tilt test: is your canthal tilt positive, neutral or negative?
Canthal tilt is the angle between the inner and outer corners of your eye. Take or upload one front-facing selfie and the canthal tilt test measures it in degrees for each eye, draws the lines on your photo and tells you which way it tilts.
Full notice: what we measure, who gets it, how long we keep it
Your photo is analyzed on your device and is not uploaded.
- 1Tick two boxes to agree to how we measure your face
- 2Take or upload one front-facing selfie
- 3See each eye's canthal tilt in degrees, drawn on your photo
Example: the corner-to-corner line on each eye
01What is canthal tilt?
Your canthi are the corners of your eye, where the upper and lower lids meet: the inner (medial) canthus by the nose and the outer (lateral) canthus at the side. Canthal tilt is the angle of the line between them, measured against a level line across the face. If the outer corner sits higher than the inner one, the tilt is positive; if it sits lower, it's negative. It's a description of eye shape, not a medical finding or a beauty score.
02Positive, neutral and negative canthal tilt
- Positive canthal tiltMore than +2°: the outer corner is higher, so the eye looks slightly upturned. This is the most common reading.
- Neutral canthal tiltBetween −2° and +2°: the two corners sit at about the same height.
- Negative canthal tiltBelow −2°: the outer corner is lower, so the eye looks slightly downturned.
03How the canthal tilt test measures
The canthal tilt test runs in your browser, which finds 478 points on your face. For each eye we take the inner and outer corner points and measure the angle of the line between them against the line through both outer corners, so a tilted head or a rotated photo gives the same answer. Each eye gets its own angle; the result is the average of the two. The cut-offs of ±2° are the ones canthal tilt calculators commonly use, and within 0.5° of a cut-off we say the reading is close to the line, because one photo can't settle a difference that small.
04What's a normal canthal tilt?
In 102 front-facing photos of adults measured with this canthal tilt test, the middle 80% of faces had a canthal tilt between 1.1° and 6.3°, and the median was 3.5°. So a small positive tilt is what most faces have; a neutral or negative one is less common, not wrong.
05Check your canthal tilt by hand
- 01Open a straight-on photo of your face, eyes open and relaxed.
- 02Draw a line through the two outer eye corners. That's your level line.
- 03For each eye, draw a line from the inner corner (where the lids meet by the nose) to the outer corner.
- 04If the outer end of that line is above the inner end, the tilt is positive. The canthal tilt test above measures the angle for you, in degrees.
06How to take the photo for a canthal tilt test
- 01Hold the phone at eye level and look straight into the lens. Tipping your chin up or down changes how the corners line up.
- 02Keep your face relaxed: a smile or squint lifts the lower lids and the outer corners with them.
- 03Take off glasses and keep hair away from the corners of your eyes.
- 04Use even light from the front so both corners are easy to see.
07The limits of a canthal tilt test
The corners are a few pixels each, so a degree either way is within one photo's noise, and expression or head angle can move the reading by more than that. If a result surprises you, try a second photo. The angle describes your eyes; it isn't a score and doesn't say whether a face is attractive.
08Canthal tilt questions
01What is canthal tilt?
Canthal tilt is the angle of the line from the inner corner of the eye to the outer corner, compared with a level line across the face. Outer corner higher means a positive tilt; lower means negative.
02What is a normal canthal tilt?
A small positive tilt is most common. In our 102 reference faces the middle 80% measured 1.1° to 6.3°, with a median of 3.5°. Neutral and negative tilts are less common, and they're normal variation too.
03Is a negative canthal tilt bad?
No. It's a description of eye shape, and plenty of faces have it. Online lists that rank tilts come from looksmaxxing forums, not from any medical standard.
04How do I measure my canthal tilt?
Use the canthal tilt test above with a straight-on, relaxed selfie: it finds the corners of each eye and gives the angle in degrees. By hand, draw a line through both outer corners as your level, then a line from each inner corner to the outer corner, and see whether its outer end is higher or lower.
05Why are my two eyes different?
Faces aren't perfectly symmetrical, and a slight head turn or tilt in the photo also moves one eye's reading more than the other. That's why the test shows each eye and uses their average.
06How accurate is an online canthal tilt test?
A canthal tilt test from a selfie is good to about a degree when the photo is straight-on and relaxed. Head angle, a smile or a squint can shift it by more, so run the canthal tilt test on two or three photos and look at the range; a reading near ±2° can fall on either side.
07Can canthal tilt change?
The angle is set by bone and the small tendons at each eye corner, so it changes little, apart from slowly with age. How it looks in photos changes more: winged eyeliner and brow grooming can make eyes read more upturned, and a smile or squint lifts the outer corners.
08Is my photo uploaded?
No. The canthal tilt test runs entirely in your browser and never uploads your photo or the points found on your face.
09Related free tools
- Eye shape detectorWhether your eyes read almond, round or long, and upturned, neutral or downturned, from one selfie, with each eye measured on your photo.
- Hunter eyes testWhat hunter eyes are, and the three parts of them a selfie can measure: canthal tilt, eye openness and brow height, each drawn on your photo.
- Attractiveness testA free score out of 10 from one selfie, with the measurements behind it. Your photo stays in your browser.