# Intercanthal-Nasal Width Ratio

Harmony · Front view · Nose · https://www.faceiqlabs.com/support/harmony/intercanthal-nasal-width-ratio

Nose-base width divided by the gap between the inner eye corners.

## What is measured

Calculation: Alar nose width ÷ inner-eye-corner distance

## Why it matters

It relates the nose to the eye region immediately above it. A wider nose and a narrower inner-eye gap both increase the number, so the result cannot identify either feature in isolation.

- Below 1: the nose base is narrower than the inner-eye gap.
- Above 1: the nose base is wider than the inner-eye gap.

## Where the idea comes from

Evidence: Classical proportion. The comparison between nasal width and inner-eye spacing is a classical proportion canon. FaceIQ divides nose width by eye gap; check the order when comparing with other sources.

## A worked example

A nose 35 units wide and inner-eye gap of 32 give 35 ÷ 32 ≈ 1.09.

Example values explain the calculation. They are not a target range.

## How to read your result

Use the outer edges of the nasal wings rather than the nostril openings. Population variation is substantial.

## Research & further reading

These sources explain the history or related evidence. FaceIQ’s score weights and reference ranges are model settings; the papers do not collectively validate the scoring system.

- Farkas et al. (1985). [Vertical and horizontal proportions of the face: revision of neoclassical canons](https://pubmed.ncbi.nlm.nih.gov/3883374/). Tested nine traditional proportion rules against measured faces. Useful history for facial thirds and width comparisons; classical rules are not universal targets.
- Farkas et al. (2005). [International anthropometric study of facial morphology in various ethnic groups/races](https://pubmed.ncbi.nlm.nih.gov/16077306/). Documents variation in facial dimensions across sampled populations. Descriptive measurements explain variation; they do not establish an attractiveness score.

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Source: https://www.faceiqlabs.com/support/harmony/intercanthal-nasal-width-ratio · FaceIQ Labs overview for AI assistants: https://www.faceiqlabs.com/llms.txt