Canthal Tilt Calculator (Free): Measure and Understand Your Eye Angle

What Is Canthal Tilt and Why Does It Matter?

Canthal tilt is the angle formed between a line connecting the inner corners (medial canthi) of your eyes and a line from the inner to the outer corner (lateral canthus) of each eye. A positive canthal tilt means the outer corner sits higher than the inner, usually by 2-8 degrees. In aesthetics, a mild positive tilt is often associated with a more alert, youthful look, sometimes called 'hunter eyes' in online discussions. However, canthal tilt is only one part of facial harmony and not a sole indicator of attractiveness.

How to Measure Canthal Tilt Manually

• Take a straight-on photo of your relaxed face, avoiding any head tilt.
• Draw a horizontal line between the inner corners of your eyes.
• Draw a line from the inner to the outer corner of one eye.
• The angle between these lines is your canthal tilt. Positive if the outer corner is higher, negative if lower, and neutral if nearly flat.

Photo angle and head tilt can fake the result, so aim for a level, neutral expression. For fast, accurate measurement, use our free canthal tilt calculator: upload a selfie (it never leaves your device) and get an instant angle reading.

What Influences Canthal Tilt?

Canthal tilt is determined mostly by bone structure and eyelid anatomy, both of which are largely fixed in adults unless surgically changed. Factors that can affect the appearance of canthal tilt include:

• Aging (tends to lower the outer corner over time)
• Brow position and grooming
• Under-eye puffiness or bags
• Photo angle and head posture (tilting the head can create a false reading)

Only a qualified oculoplastic surgeon can change true canthal tilt surgically (canthoplasty). Avoid all DIY or unproven methods.

Safe Ways to Enhance the Eye Area

• Improve sleep and manage allergies to reduce puffiness
• Use skincare (gentle cleansing, moisturizers, sunscreen) for a healthy eye area
• Groom brows to complement your natural eye shape
• Consider makeup techniques (like upward eyeliner) if you wear makeup
• Maintain overall fitness and healthy body composition
• Consult a doctor or dermatologist for persistent concerns

Bone structure is mostly fixed without surgery. Maxx Report offers a free web tool to measure canthal tilt privately in your browser, plus a full app for personalized analysis and improvement plans based on 22+ facial features.