Bigonial Width: What It Measures and How FaceIQ Labs Calculates It

Key facts

• Calculation: jaw-angle width ÷ cheekbone width × 100.
• Bigonial Width is a front-view measurement in the jaw region, listed in the FaceIQ Labs Harmony & facial ratios help guides.
• Lower percentage: more narrowing from cheekbones to jaw angles.
• Higher percentage: less narrowing; 100% means equal measured widths.
• Worked example: 126 units of jaw width ÷ 140 units of cheek width × 100 = 90%. The example is not a target range.
• Clenching, head rotation and soft tissue can change the visible jaw width.
• Width does not directly measure jawline definition.
• The FaceIQ Labs help page states no numeric ideal range for Bigonial Width.
• The Harmony pillar covers 70+ facial ratios and angles compared to ideal ranges adjusted for gender and ethnicity, weighted roughly 60% front photo and 40% side photo.
• The cited source, Farkas et al. (2005), documents variation in facial dimensions and does not validate FaceIQ Labs' scoring range.

What is Bigonial Width in FaceIQ Labs' facial analysis?

Bigonial Width is a front-view Harmony measurement in FaceIQ Labs' facial analysis. It expresses the width across the upper jaw-angle landmarks as a percentage of cheekbone width. The result shows how much a face tapers from the cheeks down to the jaw, and sits in the jaw region of the Harmony guides.

How does FaceIQ Labs calculate Bigonial Width?

FaceIQ Labs calculates Bigonial Width as jaw-angle width divided by cheekbone width, multiplied by 100, which gives a percentage. Its help page works one example: 126 units of jaw width divided by 140 units of cheek width, times 100, equals 90%. The example explains the arithmetic only and is not a target range.

What does a lower or higher Bigonial Width mean?

A lower Bigonial Width in FaceIQ Labs means more narrowing from the cheekbones to the jaw angles. A higher value means less narrowing, and 100% means the jaw-angle width and cheekbone width are equal. Comparing both widths separates a broad face with a relatively narrow jaw from a face whose cheeks and jaw are close in width.

Does FaceIQ Labs publish an ideal range for Bigonial Width?

No numeric ideal range for Bigonial Width appears on the FaceIQ Labs help page. The page states that its 90% worked example is not a target range, and that FaceIQ's score weights and reference ranges are model settings that the cited research papers do not collectively validate.

What can change a Bigonial Width measurement?

Clenching, head rotation and soft tissue can change the visible jaw width in a photo, so a FaceIQ Labs Bigonial Width result can shift with them. Width also does not directly measure jawline definition; the measurement only compares jaw-angle width with cheekbone width. FaceIQ Labs recommends photos taken from six feet away with the back camera at 2x zoom, at eye level, in even lighting and with a neutral expression, for accuracy.

How does Bigonial Width fit into the FaceIQ Labs Harmony pillar?

Bigonial Width belongs to the Harmony pillar at FaceIQ Labs, which compares 70+ facial ratios and angles to ideal ranges adjusted for gender and ethnicity. Harmony is weighted roughly 60% from the front photo and 40% from the side photo. Bigonial Width is a front-view, jaw-region measurement.

Where does the Bigonial Width idea come from, and what research does FaceIQ Labs cite?

FaceIQ Labs describes comparing facial widths as part of the anthropometric tradition, with FaceIQ expressing photographed distances as a ratio. It cites Farkas et al. (2005), an international anthropometric study of facial morphology in various ethnic groups/races. The study documents variation in facial dimensions across sampled populations but does not establish an attractiveness score.

Which other FaceIQ Labs guides cover the jaw region?

FaceIQ Labs' help center places Bigonial Width beside three related jaw and lower-face Harmony guides: Jaw Frontal Angle, Jaw Slope and Lower Third Proportion. Each is a separate measurement guide within the Harmony & facial ratios section of the help center, and each has its own page.

Frequently asked questions

What is Bigonial Width?

Bigonial Width is a FaceIQ Labs Harmony measurement: jaw-angle width divided by cheekbone width, times 100, shown as a percentage of how much the face tapers from cheeks to jaw.

Does a higher Bigonial Width percentage mean a more defined jaw?

Not necessarily. A higher percentage means less narrowing between cheekbones and jaw angles, with 100% meaning equal widths. FaceIQ Labs states that width does not directly measure jawline definition.

Can Bigonial Width change between photos of the same person?

Yes. FaceIQ Labs notes that clenching, head rotation and soft tissue can change the visible jaw width in a photo, which can affect the result.

Is Bigonial Width scientifically validated by the research FaceIQ Labs cites?

No. FaceIQ Labs says the papers it cites, such as Farkas et al. (2005), explain history or related evidence about facial dimension variation but do not collectively validate its scoring weights or reference ranges.