Nose measurement

Nasofrontal Angle

Angle at the root of the nose between the forehead and the nasal dorsum. It defines how deep and well marked the transition from forehead to nose is.

The points and construction lines on a reference profile, with the Frankfort horizontal level.

At a glance

Ideal: 115–129° (men) · 118–137° (women)
Unit: degrees
Weight in the overall score: 9
Area: Nose

How it is measured

∠ G–N–Prn

G Glabella — The most forward point of the forehead, on the midline between the eyebrows.
N Nasion — The deepest point of the dip between the forehead and the bridge of the nose.
Prn Pronasale (nose tip) — The most forward point of the nasal tip.

Ideal range and tiers

Each value falls into a tier (T1 = ideal). Comfortably inside T1 the rating is 10, easing to 9.5 at the edges of the ideal range; beyond it the rating falls with the deviation — fastest in the first tiers outside the ideal — down to −10 (below 0 where the original tier sheet takes points away) at the far end of the worst tier.

Men
Tier	Range	Rating
T1 Ideal	115–129°	9.5–10
T2 Near ideal	110–115° or 129–134°	7.2–9.5
T3 Mild deviation	106–110° or 134–138°	5.2–7.2
T4 Moderate deviation	103–106° or 138–141°	3.4–5.2
T5 Significant deviation	97–103° or 141–147°	−5 to 3.4
T6 Severe deviation	< 97° or > 147°	−10 to −5

Women
Tier	Range	Rating
T1 Ideal	118–137°	9.5–10
T2 Near ideal	113–118° or 137–142°	7.2–9.5
T3 Mild deviation	109–113° or 142–146°	5.2–7.2
T4 Moderate deviation	106–109° or 146–149°	3.4–5.2
T5 Significant deviation	100–106° or 149–155°	−5 to 3.4
T6 Severe deviation	< 100° or > 155°	−10 to −5

Differences between populations

Optional population norms move this range by the difference reported between groups measured the same way:

African descent: −8°.

Individual faces vary far more within any group than between groups; these are averages, not targets.

Related measurements

References

Powell N, Humphreys B. Proportions of the Aesthetic Face. Thieme-Stratton; 1984.