Harmony · Side view · Facial Profile
Facial Depth to Height Ratio
Ear-to-nose-base distance compared with nasal-root-to-chin-fold distance.
What is measured
The calculation
Tragus-to-subnasale distance ÷ nasion-to-sublabiale distance
Side view / Measurement guide
Follow the measurement
Select a label to focus on its line. Select again to show all measurements.
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
This compares front-to-back reach with a vertical profile span. It can help describe a deep, compact profile, but the distances are straight segments and are influenced by all four landmarks.
- Lower: less ear-to-base depth relative to the reference height.
- Higher: greater depth relative to the reference height.
Where the idea comes from
FaceIQ adaptation
This is a FaceIQ photographic construction. Clinical profile analysis provides context, but the cited work does not validate this exact landmark formula or its scoring range. [1]
A worked example
A depth of 105 units and reference height of 100 give 1.05. With height increased to 115, the ratio becomes 0.91.
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] Farkas et al. · 2005
International anthropometric study of facial morphology in various ethnic groups/racesDocuments variation in facial dimensions across sampled populations. Descriptive measurements explain variation; they do not establish an attractiveness score.