Facial structure
fWHR (Facial Width-to-Height Ratio)
fWHR (facial width-to-height ratio): bizygomatic width divided by brow-to-lip height. One of the few looksmaxxing metrics with real research behind it.
What fWHR (Facial Width-to-Height Ratio) means
fWHR — facial width-to-height ratio — divides bizygomatic width (cheekbone to cheekbone) by upper-face height, measured from the upper lip to the brow line. A wider, shorter face scores higher; typical adult values cluster around 1.7 to 2.1. Unlike most entries in this glossary, this one has an actual research trail: Carré & McCormick (2008) reported that higher fWHR predicted aggressive behavior in male hockey players, which kicked off over a decade of follow-up work. Measure it on a neutral, front-facing photo — smiling raises the lip line and corrupts the height term.
What it actually does to the first impression
Perception studies are fairly consistent on one point: people judge high-fWHR male faces as more dominant, more aggressive, and somewhat less trustworthy at a glance. That tracks the dominance axis Todorov et al. (2008) identified as one of the two main dimensions of snap face judgments. Whether dominance helps your first impression depends on what the observer is screening for — formidability and presence, or warmth and safety. High fWHR is not a straightforward attractiveness win; several studies find no direct attractiveness link at all, just a shift in which traits get assumed about you.
Reality check: the forums vs the data
The honest summary: the perception effect (wide faces look dominant) replicates reasonably well; the behavior claim (wide-faced men act aggressive) is contested, with later large-sample work finding small or null effects once body size is controlled. Forums skip that nuance and treat fWHR as a testosterone certificate, which the evidence does not support — the link between fWHR and measured testosterone is weak and inconsistent. Also unfashionable but true: you cannot change your bizygomatic width. Getting lean sharpens how wide your face looks, but the ratio itself is skeletal.
Want to know how this lever reads on you?
1 minute. The AI breaks your first impression into face / physique / outfit / vibe and shows which lever is suppressing the read — and how far it can move.
Related terms
Reference data on this site