NoseHow AI measures this feature and photo tips
The nose anchors midface proportion — its width, length, and projection balance the eyes and mouth. Nasal geometry interacts with facial thirds and contributes to profile harmony in AI analysis.
See this feature in action with our Face Analyser, Face Shape Analyzer, or Guess My Age.
Key Characteristics
- ✦Nasal width at alar base
- ✦Bridge height and straightness
- ✦Tip projection and rotation
- ✦Nostril symmetry
- ✦Profile silhouette (Roman, button, etc.)
Analysis & Photo Tips
- 📸Front and profile photos needed for full analysis
- 📸Avoid shadow under nostrils from overhead light
- 📸Neutral expression — flaring nostrils skews width
- 📸Compare nose width to inner eye distance
Related Features
Facial Thirds
Classical proportion divides the face into three equal vertical zones: upper (hairline to brows), middle (brows to nose base), and lower (nose base to chin). Deviations signal unique character and affect harmony scores.
Nose-to-Mouth Ratio
The nose-to-mouth ratio compares nasal width to mouth width and the vertical distance between nose base and upper lip. Balanced ratios contribute to lower-third harmony in facial proportion scoring.
Facial Symmetry
Facial symmetry measures left-right correspondence of landmarks — eyes, brows, nostrils, lip corners, and jaw contour. Near-symmetry correlates with higher harmony scores, though perfect symmetry is rare and unnatural.
FAQ — Nose
What nose width is proportional?
Classical guides place nasal width at the inner eye corners (intercanthal distance), though ethnic variation is substantial and normal.
Does nose shape change with age?
Cartilage continues growing slowly; tip droop and skin changes alter nasal appearance over decades.
How does nose affect face shape?
Nose width contributes to midface width perception but face shape classification primarily uses jaw, forehead, and cheekbone outline.