Canthal Tilt Calculator: Measure Your Eye Angle in Degrees
Automatically locate your medial and lateral eye corners (canthi) to calculate your exact canthal tilt angle in degrees — privately in your browser.
Zero server uploads · 100% private478 KEYPOINTS
Upload Your Front-Facing Photo
Drop a portrait here or tap below. We map 478 facial keypoints and overlay your geometric mesh directly in your browser.
4-Pillar Facial Proportion Breakdown
Midline pair alignment (30%)
fLWR 1.59 vs. Phi (30%)
26.4% fifths · +4° tilt (20%)
76.7% jaw-to-cheek ratio (20%)
Neoclassical & Phi (1.618) Reference Intervals0–100 Index
Canthal Tilt Angle Reference Chart
We compute the arctangent angle between the inner eye corner (medial canthus, landmark #362) and outer eye corner (lateral canthus, landmark #263):
Positive Canthal Tilt
The lateral canthus sits higher than the medial canthus, creating an upward-sloping palpebral fissure axis commonly associated with compact, almond, or hunter-eye shapes.
Neutral Canthal Tilt
The inner and outer eye corners lie nearly on the same horizontal plane. A classic, balanced orientation across many facial types.
Negative Canthal Tilt
The outer corner sits slightly lower than the inner corner, producing a softer, rounder expression. Note: tilting your head upward in a selfie can artificially lower your measured angle.
Learn More About Eye Geometry
Read our complete breakdown on canthal tilt angles and how camera posture affects eye measurements.