Skip to content
Faceform
Menu

Free tool, runs on your device

Canthal tilt test

Measures the angle from the inner to the outer corner of each eye, corrected for head roll and fused over 8 frames, with the spread across them.

Drop a front-facing photo here

  • Face the camera straight on
  • Neutral expression, no smile
  • Hair off your forehead
  • Glasses off
  • Arm’s length, not a close selfie
  • Even light

Measured on this device. Your photo is never uploaded. How we keep it that way

What canthal tilt is

The canthi are the corners of the eye, where the upper and lower lids meet: the medial canthus beside the nose and the lateral canthus toward the temple. Canthal tilt is the angle of the line between them, measured against level. Positive means the outer corner sits higher, negative that it sits lower.

In MediaPipe’s landmark model the corners are points 133 and 33 for the right eye and 362 and 263 for the left. The test measures the angle from the inner point to the outer point for each eye separately.

How the test measures it

Level is not the edge of the camera frame. A head tipped a few degrees toward one shoulder lifts one eye and drops the other, so each eye is measured against the line through both inner corners. That cancels head roll.

Pitch is harder to cancel. The outer corners sit further back in the skull than the inner ones, so tipping the chin down raises them in the image and tipping it up lowers them. The scan only takes the front measurement when your head is within ±6° of straight in both yaw and pitch, then measures 8 consecutive frames and takes the median. The spread across those frames is shown next to the result: +4.1° ±0.4° means the frames agreed to within 0.4°.

How to read your result

  • Positive: the outer corner is higher than the inner corner. Above about +2°.
  • Neutral: the corners are level to within about two degrees.
  • Negative: the outer corner is lower than the inner corner. Below about −2°.

The label is based on the average of your two eyes. Read the label and the size of the angle, not the decimal. If the spread is larger than the gap between your value and a boundary, you are on the boundary; rescanning in better light will usually settle it. Left and right are your own sides.

In the attractiveness score, tilt is one of the measurements in the eye component. The formula peaks at 14°, beyond almost every real eye, so that across the real range a little more tilt scores a little better; it is a direction, not a target. The methodology shows how it is weighted.

What changes the reading

  • Camera height. A camera below your eyes looks up at them, which has the same effect as tipping your chin up. Keep the phone at eye level.
  • Expression. Smiling lifts the lower lids and the cheeks; raised brows pull the upper lids. Keep a neutral face.
  • Eye makeup. Winged liner changes how the eye looks, not where the lids meet. The model finds the corners from the lid shape, but heavy liner can still pull them.
  • Light. A shadow at the outer corner makes it harder to place precisely. Face a window.
  • Glasses. Frames can sit over the outer corners. Take them off.

For a full explanation of positive, neutral and negative tilt and what causes each, read the canthal tilt guide.

What the full report adds

The free result is the angle of each eye with its label. The Full Face Report costs $9, paid once, and adds the eye measurements behind the score (tilt, openness, size against face width and spacing), your attractiveness score broken into its components, your profile, and what would move the score. It is built on your device from the same scan.

The same scan also gives your attractiveness score and face shape.

Questions

Questions about the canthal tilt test

What is canthal tilt?

The angle of the line from the inner corner of the eye to the outer corner, compared with level. Outer corner higher: positive. Outer corner lower: negative. Within about two degrees of level: neutral. Each eye is measured separately.

What is a normal canthal tilt?

There is no single normal value. Neutral and slightly positive tilts are the most common in adults. Negative tilts are less common and become more likely with age, as the tendon that anchors the outer corner of the eyelids loosens. Tilt also varies naturally between families and ancestries.

Is a positive canthal tilt more attractive?

Slightly, on average. A small upward tilt tends to read as more alert and more youthful, and in the attractiveness score a more positive tilt scores a little better across the range real eyes show. It is one measurement inside one component that carries 15% of the score, so a neutral tilt costs very little and a strongly positive one gains little more.

Why are my two eyes different?

No face is perfectly symmetrical, so a difference of a degree or two between the eyes is ordinary. The scan corrects for head roll, so a larger, consistent difference is a real asymmetry in where the corners sit. The spread shown next to each value tells you how much of a gap is measurement noise.

Can canthal tilt change?

Slowly. The bone and the canthal tendons set it, and it drifts downward over decades as the tendons loosen. Day to day, puffiness and tiredness move it a little. The reading moves much more with how you hold your head: tipping the chin down raises the outer corners in the image, which is why the scan only captures the front view when your pitch is within ±6°.

Is my face uploaded?

No. The eye corners are found by Google’s MediaPipe Face Landmarker running inside your browser, and the angle is calculated there. Nothing about your face is sent to a server. The only request we make is Stripe checkout if you buy the report, and it carries nothing about your face.