Facial width-to-height ratio: a proportion, not a slider input.

Facial width-to-height ratio compares bizygomatic width — the distance across the face at its widest point, roughly cheekbone to cheekbone — against the height of the upper face, from the top of the lip to the brow:

• Higher ratio — the face reads as wider relative to that upper-face height.
• Lower ratio — the face reads as narrower relative to it.

It originates in academic research on perceived dominance rather than in any face-rating app, and it's a proportion between two facial distances — not a size in absolute units, and not a measurement of bone density, thickness, or structure beyond those two distances.

Most standalone FWHR tools ask for two typed numbers, or one uploaded photo cropped to the face. Both approaches skip the actual measurement problem:

• Camera distance changes how wide and how tall the face reads, and it doesn't change both at the same rate.
• A head turn shifts which point on the cheek reads as the true "widest" edge.
• Chin tilt moves where the brow-to-lip span appears to start and end.

None of that reflects an actual change in bone structure — it's the same category of camera-angle sensitivity covered in the full breakdown of why face-rating scores swing between scans. A typed number or a single static photo has no way to catch or correct for any of it.

Mogalytics does not compute or display a separate FWHR number. Its six-measurement composite includes two camera-visible proportions in the same family:

• Cheekbone ratio — cheek width relative to jaw width.
• Jaw ratio — jaw height relative to total face height.

Both are read live from your own camera feed and settled over a 30-frame trimmed mean, so a single bad angle doesn't define the result the way it would with a typed number or one photo. Mogalytics makes no claim that these are the same formula as FWHR or as any other site's specific calculation — they're a different, camera-verified way of reading the same general category of width-versus-height proportion.

FWHR overlaps with two of the six measurements Mogalytics tracks. If you're auditing the rest:

• Cheekbone ratio — the closest camera-read analog, sensitive to head turn.
• Jaw ratio — the height half of the comparison, sensitive to chin pitch.
• Canthal tilt — a different upper-face angle, sensitive to head roll.
• Gonial angle — a related jaw-corner term that needs a side profile, not a front-facing read.
• Eye separation ratio (ESR) — another bizygomatic-width-based proportion, divided by interpupillary distance instead of jaw height.
• Buccal fat & hollow cheeks — a related cheek-fullness term about fat-pad volume, not width, that no geometry ratio can measure.