Harmony · Side view · Nose
Nasofacial Angle
The angle at the nasal root between the nose-tip direction and the chin direction.
What is measured
The calculation
Acute angle: pronasale → nasion → pogonion
Side view / Measurement guide
Follow the measurement
Dots mark the landmarks. Lines show how the measurement is taken.
In these guides, nasion means the nasal root, subnasale the nose base, and pogonion the most forward chin point. Frankfort refers to the direction from the ear-opening landmark to the lower orbital landmark.
Why it matters
It places the nose against a broader facial line. A change in chin projection alters that line and can change the apparent prominence of the same nose.
- Lower: the nose-tip and chin directions are closer together.
- Higher: the directions diverge more.
Where the idea comes from
Clinical reference
Nasal angles and projection are used to describe profile shape. Preference studies have tested edited noses; FaceIQ’s particular landmarks and score ranges should not be treated as universal conclusions from those studies. [1]
A worked example
A 30° result means the two rays from the nasal root diverge by 30°. Moving the chin can alter that angle without changing nose length.
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] Tavakoli et al. · 2023
Ideal Nasal Preferences: A Quantitative Investigation with 3D Imaging in the Iranian PopulationAsked 203 volunteers to rate edited nose features on one male and one female model. Supports studying angles and projection together, with limits from the sampled faces and raters.