Harmony & facial ratios
Bigonial Width
1 min read · Updated October 4, 2026
The width across the corners of the jaw as a percentage of cheekbone width.
What it is
Bigonial width compares how wide the jaw is, measured between the two jaw corners, with how wide the cheekbones are. It describes how strongly the face tapers from cheeks to jaw.
How it's measured
The distance between the two jaw-corner points is divided by cheekbone width and multiplied by 100.
How it's read
A wider jaw relative to the cheeks gives a stronger, squarer lower face, and the male range sits higher. A narrower jaw relative to the cheeks gives a more tapered, softer lower face, and the female range sits lower.
What affects it
Landmarks on the jaw are easily affected by facial hair, shadows and beards, which can hide the jaw outline. Shave or trim and use even light for the cleanest reading.
Related measurements
In the same group: Jaw Frontal Angle, Deviation of IAA & JFA and Facial Symmetry. 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.