Harmony · Front view · Nose
Midface–Jaw Angle Difference
The absolute difference between the eye–nose triangle angle and the frontal jaw angle.
What is measured
The calculation
|Ipsilateral Alar Angle − Jaw Frontal Angle|
Front view / Measurement guide
Follow the measurement
Select a label to focus on its line. Select again to show all measurements.
Why it matters
It compares the taper of the central face with the taper of the lower face. Similar numbers mean these two geometric constructions have similar angles, even though their widths and heights can differ.
- Near zero: the two reported angles are similar.
- Larger: the reported angles differ more, regardless of which is greater.
Where the idea comes from
FaceIQ adaptation
This is a composite FaceIQ comparison built from two existing measurements. The cited feature-arrangement study gives context, but does not test whether matching these angles improves attractiveness. [1]
A worked example
An alar angle of 91° and jaw frontal angle of 88° differ by 3°. Reversing those values still gives 3°.
Example values explain the calculation. They are not a target range and are not measurements of the schematic above.
Research & further reading
The sources below explain the history or related evidence. FaceIQ’s score weights and reference ranges are model settings; these papers do not collectively validate the scoring system.
[1] Pallett, Link & Lee · 2010
New “Golden” Ratios for Facial BeautyFour experiments varied eye spacing and eye-to-mouth distance in face images. Preferences depended on feature arrangement. The tested ratios and stimuli do not validate every FaceIQ measurement or a universal ideal.