PLATE 01 + 02 / HUMAN FACE

Anatomy of proportion

Select a region to explore its structure and evidence.

AnteriorFront

A / FIXED REFERENCE

LateralProfile

B / FIXED REFERENCE

No feature selected
Selection is linked across both views.

Illustrative anatomy · approximate outlines.
Not a measured “ideal” face.

FORMA FEATURE / CHIN & JAW

Jaw width & contour: measurements, ratios, and research

Bigonial width is the distance between the jaw angles. The visible contour includes bone, masseter muscles, fat, skin, and sometimes beard.

How jaw width & contour is measured

Compare jaw-corner width with cheekbone width. This frontal ratio does not reveal gonial angle, ramus length, or forward jaw position.

Ratios, ranges & competing claims

≈ 0.89 — A sample-based width relationship

The male celebrity sample’s mean cheek-to-jaw width ratio was 1.128. Its reciprocal is approximately 0.89 jaw/cheek width.

Observation: Derived reciprocal of the reported mean ratio, not the mean individual reciprocal or a validated optimum. Using Artificial Intelligence to Quantify Sexual Dimorphism in Aesthetic Faces

Near facial width — An alternative survey preference

The 2016 jaw survey preferred intergonial width similar to facial width in its presented images.

Study: The sample of celebrity/non-celebrity photos and survey design do not support one mandatory ratio. The ideal male jaw angle—An Internet survey

Practical takeaway

A broad lower face is supported as one male reference.

Use the sample and survey below to compare jaw breadth with cheek breadth. Then decide how much cheek-to-chin taper the overall face has.

What changes the answer

Wider cheekbones make a fixed jaw look narrower. Chin width, masseter bulk, and soft tissue change the outline; broad jaw corners alone do not determine a square-looking face.

Connected facial features

Explore the interactive atlas and compare this feature with both fixed reference views.