Jaw and chin · Side photo

Jaw corner height

gonion to mouth

Lower jaw corners mean a taller back part of the jaw.

How it's measured

Height of the jaw corner (gonion) below the lip line (stomion), measured square to the Frankfort plane, as a percentage of face height (nasion to menton). Positive when the jaw corner is below the lip line. One decimal, because 1% is only about 1.2 mm.

Reference range

Male reference

0.0–11.8%

Female reference

0.0–13.0%

Source: Community facial analysis formula (public spreadsheet), top range: jaw corner below the mouth line. The formula sets no lower limit; we cap the range at 15 mm below, converted to % of face height.

In the score

Counts toward the score with weight 5 (Community formula point table: gonion to mouth relationship, 5 points).

What changes it

• Needs a true side profile with the ear opening and the lower eye rim visible, so the head can be levelled before measuring.

One number, one feature

One measurement describes one detail in one photo. Pose, lens and expression move it, and every reference range is an average from limited samples.