What the term actually describes
Nasolabial angle is the angle formed between two lines meeting at the base of the nose, seen from the side of the face:
- Columella line — the line along the strip of skin between the nostrils.
- Upper lip line — the line along the front of the upper lip.
It's an angle, not a distance and not a size in absolute units — and like gonial angle, it's read from a genuine side profile, not from the front of the face.
Why the quoted "ideal" range varies
Published rhinoplasty preference studies place the broad aesthetic range somewhere between 90 and 120 degrees, but sex-specific figures differ between individual studies:
- One population-preference study found the most-preferred angle around 97 degrees for men and around 105 degrees for women.
- A separate study found a narrower, closer-together band of roughly 93 to 99 degrees for men and 96 to 100 degrees for women.
That spread between studies — not just between forum posts — is a reason to treat any single quoted number as a general reference range rather than one precise, universally agreed target, the same caution this site applies to any specific ELO or score figure discussed on the tiers page.
Why a front-facing camera can't read it
The angle nasolabial angle describes sits on the depth axis of the face — the same axis a straight-on camera view foreshortens the most:
- A full-frontal shot compresses the columella-to-lip junction toward the outline of the nose, where the actual angle isn't visible.
- Reading it needs a genuine side profile view, where the base of the nose and the front of the upper lip are both visible against each other in frame.
That's the same camera-setup limitation covered on the gonial angle page — a different problem from the pitch/roll/turn sensitivities in the full breakdown of why face-rating scores swing between scans, which are about holding a front-facing angle steady rather than needing a different angle entirely.
Where this fits next to what Mogalytics actually reads
Mogalytics does not compute or display a separate nasolabial angle number. Its six-measurement composite reads live from a front-facing camera feed, and the closest measurement in the same nose family is:
- Nose bridge ratio — bridge height relative to width, read from the front rather than the side.
Bridge ratio and nasolabial angle both describe the nose, but they're not the same measurement — one is a height-to-width proportion read frontally, the other is a base-of-nose angle read in profile. Mogalytics makes no claim of parity between the two, or with any other site's specific nasolabial angle calculation.
Related reads
Nasolabial angle sits alongside two of the six measurements Mogalytics tracks, plus the other profile-only term this site covers. If you're auditing the rest:
- Nose bridge ratio — the closest camera-read analog, sensitive to angle rather than distance.
- Gonial angle — another side-profile-only term Mogalytics doesn't compute directly.
- Ricketts E-line — another side-profile-only term, anchored between the nose and chin.
- Midface ratio — the adjacent proportion one segment up, read frontally instead.
- How does Omoggle's scoring work? — the publicly described mechanics this term shows up alongside.