Measure how closely your facial proportions match phi (1.618). 478 landmarks, processed in your browser.
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The golden ratio — written as the Greek letter phi (φ) — is the irrational number 1.6180339... It appears when a line is divided so that the whole length divided by the longer part equals the longer part divided by the shorter. The proportion shows up in spiral shells, sunflower seed arrangements, and Renaissance architecture, and was popularised in 20th-century facial aesthetics by surgeon Stephen Marquardt's phi mask (2002).
In facial analysis, phi is most commonly applied to the length-to-width ratio of the face, but classical canon extends the ratio across roughly a dozen relationships between features. Our calculator measures the primary face length-to-width ratio plus thirds and fifths balance — see the table below for the broader set of phi proportions used in cosmetic surgery and aesthetics.
Eight proportions where phi (or balanced equal ratios) appear in the classical aesthetic canon. Real faces rarely match all eight precisely — most attractive faces match three or four closely with others falling within typical population ranges.
| Proportion | Ideal ratio | Description |
|---|---|---|
| Face length to width | 1.618 : 1 | The signature golden ratio proportion. Face height (hairline to chin) divided by face width (cheekbone to cheekbone) approaches phi in faces commonly rated as harmonious. This is the ratio our calculator above measures. |
| Lower face thirds | 1.618 : 1 | The distance from the base of the nose to the bottom of the upper lip, compared with the distance from there to the chin tip. Phi here is associated with a balanced lower face. |
| Upper face proportions | 1.618 : 1 | Hairline to upper eyelid versus eyebrow to lower eyelid. Often cited in classical canon — a phi relationship between the upper face zones. |
| Lip volume balance | 1 : 1.618 (lower fuller) | Lower lip volume is roughly 1.6× upper lip volume in the classical ideal. Reversed ratios are sometimes considered less harmonious in front-on view. |
| Mouth to nose width | 1.618 : 1 | Mouth width measured at the lip corners (cheilions) divided by nose width at the nostrils (alars). Phi is the classical aesthetic target. |
| Eye spacing | 1 : 1 : 1 | The distance between the inner corners of your eyes should approximately equal the width of one eye. This is the 'fifths' rule in the upper face — five eye-widths across. |
| Facial thirds | 1 : 1 : 1 | Hairline to brow line, brow line to base of nose, base of nose to chin tip — three roughly equal vertical sections. Not a phi ratio, but part of the same classical framework for proportional balance. |
| Pupil to mouth height | 1.618 : 1 | Pupil center to lip line versus lip line to chin. A less commonly cited but classically referenced phi proportion in cosmetic surgery planning. |
The percentage score reflects how close your face length-to-width ratio is to 1.618. A 100% score is mathematically rare — and unnecessary, since faces commonly rated as harmonious in research typically score between 80 and 95 percent rather than at the theoretical maximum.
90–100% — Very close to phi
Your face length-to-width ratio is within 10% of 1.618. Faces in this range are uncommon but not rare — and a high score is correlated with, not synonymous with, perceived attractiveness.
80–89% — Strong harmony
A balanced ratio in the typical attractive range. Most faces rated as classically harmonious in cosmetic studies fall here, not at 100%.
70–79% — Typical range
A naturally common ratio. Slight elongation (oblong-tending) or shortening (round-tending) relative to phi. Most people fall in this range.
Below 70% — Noticeable deviation
Your ratio differs significantly from 1.618 — either much taller or much wider. This often indicates an oblong or round face shape rather than any aesthetic deficiency.
The golden ratio is one of the most popular ideas in facial aesthetics — and one of the most contested. It's worth being honest about what the research supports.
The honest summary
The golden ratio and the facial width-to-height ratio (fWHR) are frequently confused. They measure different things, target different research questions, and have different "ideal" ranges.
Golden Ratio (this tool)
Formula: face height (hairline to chin) ÷ face width (cheekbone to cheekbone).
Target: 1.618 (phi).
Research focus: aesthetic harmony and classical proportions.
fWHR (different tool)
Formula: bizygomatic width ÷ upper facial height (top eyelid to upper lip).
Range: typically 1.6 to 2.15 in adults; no aesthetic "ideal".
Research focus: perceived dominance, aggression, and athleticism — not beauty.
Calculate your fWHR →Front-facing, eye-level camera
Tilted angles distort vertical proportions. Hold the camera at eye level, perpendicular to your face, roughly arm's length away.
Neutral expression
Smiling shortens the apparent face length and widens the lower third. Use a relaxed, neutral expression for the most accurate ratio.
Hair pulled back
Hair covering the hairline or jaw outline blocks landmark detection. Tie hair back so the full face contour is visible.
Avoid wide-angle selfies
Phone selfie cameras use wide-angle lenses that exaggerate features close to the lens (often the nose). A photo taken from a few feet away by another person — or a back camera at arm's length — gives the most accurate proportions.
Even, soft lighting
Strong shadows can shift apparent feature edges. Diffused front lighting (window light works well) gives the cleanest landmark detection.
A 100% score would mean your face length is exactly 1.618 times your face width — a precise match to phi. In practice, most faces commonly rated as attractive in clinical studies score in the 80–95% range, not at 100%. Real faces vary, and a small deviation from phi is the rule, not the exception. The golden ratio works best as a relative guide rather than an absolute target.
An 80% score means your facial proportions land close to phi (1.618) but with the small, normal deviation that nearly every real face shows. It sits at the lower edge of the 80–95% range where faces commonly rated attractive in clinical studies fall — so it is a solid, typical result, not a poor one. A score near 80 rather than 90+ usually reflects a slightly longer (oblong) or rounder face than the phi target. As with any single ratio, read it as one data point about your proportions, not a grade on your appearance.
The evidence is mixed. The idea was popularized by Stephen Marquardt's phi mask in 2002, but a comprehensive 2024 systematic review concluded that there is no strong evidence linking the golden ratio specifically to perceived facial beauty. Multiple factors correlate with attractiveness — symmetry, averageness, sexual dimorphism, skin quality — and the golden ratio is one signal among many rather than a master key.
Several celebrities have been studied with phi-based mapping. Bella Hadid, Jodie Comer, and George Clooney have appeared in various 'closest to golden ratio' rankings, but these are media exercises rather than rigorous studies. Marquardt's original work analyzed only a small sample of attractive faces, and his mask was developed from those measurements rather than predicting them. Treat the rankings as entertainment, not science.
The two are commonly confused. The golden ratio in facial analysis usually refers to face length divided by face width (target: 1.618). fWHR (facial width-to-height ratio) is a different research construct: bizygomatic width divided by upper facial height (top eyelid to upper lip), with population averages around 1.6 to 2.15. fWHR is studied for its links to perceived dominance and aggression, not aesthetic harmony. To check your fWHR specifically, use our facial ratios tool.
Some, not all. The skeletal frame — face length, cheekbone width, jaw width — is set by your early 20s and changes very little after that. Soft tissue is more mutable: weight changes shift face width subtly, masseter exercises or Botox change perceived jaw width, fillers add length-balancing volume to the chin or forehead. Hairstyle and grooming change the visual edges of the face significantly. Surgical options (genioplasty, orthognathic surgery) can change the underlying skeletal proportions.
Camera angle, lens distortion, and expression all shift apparent proportions. A photo taken from below makes the lower face appear larger; a wide-angle lens (most phone selfie cameras) makes the nose appear larger relative to the rest of the face; a smile widens the lower face and shortens the perceived face length. For consistent measurements, use the same conditions: front-facing, neutral expression, even lighting, eye-level camera, hair pulled back.
Da Vinci's Vitruvian Man drew on Vitruvius's classical canon of human proportions, which used simple integer ratios (head = 1/8 of total height, etc.) rather than phi specifically. The popular claim that Renaissance artists hid the golden ratio in their portraits is not well-supported by primary sources. The phi-based facial canon is a 20th-century construction (most prominently Stephen Marquardt's mask), not a recovered Renaissance secret.
Not necessarily. Research consistently finds that attractiveness is multifactorial — symmetry, skin quality, expression, sexual dimorphism, and averageness all contribute, and many faces rated highly attractive deviate from phi. A low golden ratio score most often indicates an oblong or round face shape, not a less attractive face. Use the score as one data point in understanding your facial proportions, not as a verdict on appearance.