Jaw and chin · Side photo

Ramus to jaw length

ramus to mandible ratio

Compares the upright and the horizontal parts of the lower jaw.

How it's measured

Length of the back part of the jaw, from the jaw corner (gonion) up to the ear (tragus), divided by the length of the lower border, from the jaw corner to the bottom of the chin (menton). The tragus stands in for the jaw joint, which sits just in front of it.

Reference range

Male reference

0.59–0.77

Female reference

0.59–0.77

Source: Community facial analysis formula (public spreadsheet), top range: 0.59-0.77.

In the score

Counts toward the score with weight 10 (Community formula point table: ramus to mandible ratio, 10 points).

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.