# Bigonial Width

Harmony · Front view · Jaw · https://www.faceiqlabs.com/support/harmony/bigonial-width

Width across the upper jaw-angle landmarks as a percentage of cheekbone width.

## What is measured

Calculation: Jaw-angle width ÷ cheekbone width × 100

## Why it matters

It measures how much the face tapers from cheeks to jaw. Comparing both widths separates a broad face with a relatively narrow jaw from a face whose cheeks and jaw are close in width.

- Lower: more narrowing from cheekbones to jaw angles.
- Higher: less narrowing; 100% means equal measured widths.

## Where the idea comes from

Evidence: FaceIQ adaptation. Comparing widths belongs to the anthropometric tradition. FaceIQ expresses these photographed distances as a ratio; population measurements provide context rather than proof of this particular scoring range.

## A worked example

126 units of jaw width ÷ 140 of cheek width × 100 = 90%.

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

## How to read your result

Clenching, head rotation and soft tissue can change the visible jaw width. Width does not directly measure jawline definition.

## 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. (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/bigonial-width · FaceIQ Labs overview for AI assistants: https://www.faceiqlabs.com/llms.txt