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

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

FORMA FEATURE / EAR & NECK

Under-chin & neck: measurements, ratios, and research

The transition from the underside of the chin to the front of the neck. Chin projection, posture, skin, fat, and deeper anatomy all influence its contour.

How under-chin & neck is measured

Use the study’s tangent construction along the submental and anterior neck contours in natural head position. This is not a direct measurement of hyoid position.

Ratios, ranges & competing claims

90–100° — Most attractive in a silhouette study

The study’s highest ratings were near 95°, with 90–100° preferred and up to 105° acceptable.

Study: An idealized silhouette with a specific construction. Other “cervicomental” methods can produce different numbers; head posture changes the contour. Submental-Cervical Angle: Perceived Attractiveness and Threshold Values of Desire for Surgery

Practical takeaway

A clear turn from under-chin to neck is the study-backed reference.

Use the preferred angle below with its stated tangent method. Read the transition in natural head position alongside chin projection.

What changes the answer

A less projecting chin shortens the visible under-chin span. Posture, soft-tissue fullness, skin, and deeper neck anatomy also affect the contour; extending the neck can make a photograph look sharper without changing anatomy.

Connected facial features

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