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Reviewed July 5, 2026
What is nasolabial angle?
The nasolabial angle, also known as nasal tip rotation in rhinoplasty literature, is the angle formed between the base of the nose and the upper lip. It is used in facial analysis to assess profile balance and how the nose meets the lip. This measurement plays a key role in how harmonious the face appears from a side view.
How It's Measured
How is the nasolabial angle measured?
The nasolabial angle measures the relationship between the nose and the upper lip using a side profile view. It is defined by:
- A line along the base of the nose (columella)
- A line along the upper lip
This helps determine whether the nose appears proportionate to the rest of the face.
Left: the canonical female profile. Right: the same face with the nose tip rotated upward by approximately 15°, raising the nasolabial angle from 112° to 128°. Same identity, same lighting, same framing. Hover the image to zoom into the measurement.
Why It Matters
Why does the nasolabial angle matter?
The nasolabial angle sets how the lower nose and upper lip read together in profile. Small shifts move three things at once:
- Tip rotation. Under 80° reads as a droopy tip in clinical practice (Daniel, 2009); over 110° reads as over-rotated.
- Ethnic typicality. Population means span 97.9° in Turkish males to 104.3° in Han Chinese males, so a single global ideal misreads non-Caucasian profiles (Çakır et al., 2014).
- Surgical target. The Powell and Humphreys reference of 95° to 105° is the most-cited Western target, but ethnic phenotype should drive the plan, not the textbook number (Chatrath et al., 2005).
The ranges below show what's typical for the major populations.
In rhinoplasty literature the nasolabial angle is also called nasal tip rotation. Both terms describe the same geometry between the columella and upper lip.
90°–95°
Men
95°–110°
Women
90°–110°
Typical Range
These values vary depending on individual facial structure and background.
Demographic Variants
Ideal Nasolabial Angle by Demographic
Normative ranges vary by population. Each row links to a dedicated page with full citations.
Demographic | Ideal range | Source |
|---|---|---|
African men | 90°–98° | |
African women | 92°–106° | |
East Asian men | 88°–96° | |
East Asian women | 94°–108° | |
Caucasian men | 90°–95° | |
Caucasian women | 95°–110° |
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Your Questions
Frequently asked questions
Healthy values sit between 90° and 110°, with women a few degrees above men on average. Studied means vary by ethnicity: 97.9° in Turkish males, 104.3° in Han Chinese males, and roughly 100° to 105° across Indian populations (Çakır et al., 2014), (Bali et al., 2023). There is no single global ideal; the right reference depends on which population the profile belongs to.
Acute (under 90°) means the nose tip points downward relative to the upper lip, which reads as a droopy or under-rotated tip. Values under 80° are classed as a true droopy tip in rhinoplasty practice (Daniel, 2009). Obtuse (over 110°) means the tip rotates too far upward, which reads as over-rotated or pig-nosed. The healthy zone sits between, with the exact target dictated by sex and ethnicity rather than a fixed degree.
Yes. The tip droops with age as the supportive cartilages weaken, which closes the angle progressively. Older patients are often candidates for tip rotation surgery for this reason (Daniel, 2009). The age-related shift is meaningful but small in absolute degrees: most healthy adults stay within a 90° to 110° band well into their seventies.
It is measured on a right-profile photograph between three soft-tissue landmarks: the columella (Col), the subnasale (Sn), and the labrale superius (Ls). The angle reads at Sn, between the line from Col to Sn and the line from Sn to Ls. Modern clinical analyses derive the value from landmark coordinates on a standardised side-profile shot, which is faster and more reproducible than physical calipers on the face.
Yes. Tip rotation surgery is one of the most common moves in cosmetic rhinoplasty, used to lift a droopy tip or to deproject an over-rotated one. The exact target depends on the patient's ethnic phenotype rather than a single textbook degree (Daniel, 2009). Healthy Caucasian noses tend to cluster near the Powell and Humphreys tip-projection ratio of 2.8:1, which is a common reference point Western surgeons aim for (Chatrath et al., 2005).