Harmony & facial ratios
Eyebrow Tilt
1 min read · Updated October 4, 2026
The angle of each brow from its inner end up to its highest point.
What it is
Eyebrow tilt measures how steeply the brow rises from the inner end near the nose to its peak. A flat brow is near 0°; a rising, arched brow has a higher angle.
How it's measured
The line from the brow head to the brow arch is compared with the horizontal in a levelled frame, for each brow, and the two are averaged.
How it's read
Brow shape is one of the clearest sex-linked traits, so the ranges differ: straighter, flatter brows are the more masculine norm and a more arched, rising brow the more feminine one. Moderate tilt reads as natural and expressive on both.
What affects it
Expression changes brow angle instantly: raised brows steepen it, a frown flattens it. Grooming changes the visible shape, and the measurement follows the brow you actually have in the photo, so keep your face neutral.
Related measurements
In the same group: Eyebrow Low Setedness, Brow Length to Face Width Ratio and Lateral Canthal Tilt. The full list is on the Harmony overview.
See it on a full report
Open the sample report to see every measurement, score and highlight on a real example.