Face Shape Photo Calculator
Facial Proportion Calculator works out Face length : face width and Mouth width : nose width from Face length, hairline (trichion) to chin (menton), Face width across the cheekbones (bizygomatic) and Jaw width (bigonial). The default figures on this page give face length : face width of 1.4615; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
6 steps
- Face length : face width = 190 / 130 = 1.461538.
- Mouth width : nose width = 52 / 35 = 1.485714.
- fWHR = bizygomatic width / upper-face height = 130 / 65 = 2 (Carre and McCormick 2008).
- Face width / eye width = 130 / 30 = 4.333333; the neoclassical canon expects 5.
- Vertical thirds 63, 64, 63: the largest exceeds the smallest by 1.5873%; the canon expects them equal.
- Mean absolute distance of the two phi-compared ratios from phi = 8.9249%.
Every ratio against its referencetable
| ratio | measured | reference | differencePercent | note |
|---|---|---|---|---|
| Face length : face width | 1.461538 | 1.618034 | -9.672 | the proportion most often claimed to be golden |
| Mouth width : nose width | 1.485714 | 1.618034 | -8.1778 | the second of the two commonly cited golden facial proportions |
| Face width : eye width | 4.333333 | 5 | -13.3333 | Farkas neoclassical canon: the face is five eye-widths wide |
| Cheekbone width : jaw width | 1.181818 | 1.618034 | -26.9596 | compared to phi by convention only; there is no canon for it |
| Vertical thirds, largest against smallest | 1.015873 | 1 | 1.5873 | Farkas neoclassical canon: the three vertical thirds are equal |
Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
4 sources
What the Facial Proportion Calculator calculates
Computes facial proportion ratios from measurements you supply - face length to width, mouth to nose, the vertical thirds, the horizontal fifths and the facial width-to-height ratio - and reports how far each sits from the golden ratio or the neoclassical canon it is usually compared with.
How to use this Facial Proportion Calculator
Enter Face length, hairline (trichion) to chin (menton), Face width across the cheekbones (bizygomatic), Jaw width (bigonial) and Forehead width at its widest. Face length : face width updates as you type, and “Use a worked example” loads checked figures you can adjust. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Face length : face width, Mouth width : nose width and Cheekbone width : jaw width.
The method follows Farkas LG. Anthropometry of the Head and Face. 2nd ed. Raven Press, 1994 - definitions of the standard craniofacial landmarks and the neoclassical canons (equal vertical thirds, the horizontal fifths), Farkas LG, Hreczko TA, Kolar JC, Munro IR. Vertical and horizontal proportions of the face in young adult North American Caucasians: revision of neoclassical canons. Plast Reconstr Surg 1985;75(3):328-338 - measured how rarely the canons actually hold, Carre JM, McCormick CM. In your face: facial metrics predict aggressive behaviour. Proc R Soc B 2008;275(1651):2651-2656 - the facial width-to-height ratio definition used here (bizygomatic width / upper-face height) and Euclid, Elements VI definition 3 - the golden ratio phi = (1 + sqrt 5)/2, shared with the golden-ratio engine.
A face measured at 190 long by 130 wide example
With What do you want to see?: ratios, Face length, hairline (trichion) to chin (menton): 190, Face width across the cheekbones (bizygomatic): 130, Upper-face height, upper lip to the highest point of the eyelids: 65, the calculator returns Face length : face width: 1.46153846, Facial width-to-height ratio (fWHR): 2. This example is checked against an independent source in the test suite.
What you can compare
Change one input at a time to see how it affects Face length : face width, Mouth width : nose width and Cheekbone width : jaw width. The inputs you can vary are Face length, hairline (trichion) to chin (menton), Face width across the cheekbones (bizygomatic), Jaw width (bigonial), Forehead width at its widest, Upper-face height, upper lip to the highest point of the eyelids and Nose width at the nostrils (alar width).
Understanding Face length : face width, Mouth width : nose width and Cheekbone width : jaw width
Proportions only. This is arithmetic on measurements you take yourself: it cannot read a photograph, it does not score attractiveness, and no result here says anything about health, character or ancestry. Facial proportions near phi or near a neoclassical canon are a geometric coincidence, not a finding.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
How do I know my facial proportions?
Computes facial proportion ratios from measurements you supply - face length to width, mouth to nose, the vertical thirds. Open “How this is worked out” beside the result to see each step for your own figures.
What is the 1:3 face rule?
On the figures this page opens with — face length, hairline (trichion) to chin (menton) 190, face width across the cheekbones (bizygomatic) 130 and upper-face height, upper lip to the highest point of the eyelids 65 — the face length : face width is 1.4615. No single number fits everyone: change any figure above and the answer updates as you type, with each step of the arithmetic beside it.
What are good facial proportions?
Computes facial proportion ratios from measurements you supply - face length to width, mouth to nose, the vertical thirds. On this page it is computed from Face length, hairline (trichion) to chin (menton), Face width across the cheekbones (bizygomatic) and Jaw width (bigonial) and shown as Face length : face width, Mouth width : nose width and Cheekbone width : jaw width.
How do I calculate the golden ratio for my face?
It needs Face length, hairline (trichion) to chin (menton), Face width across the cheekbones (bizygomatic), Jaw width (bigonial), Forehead width at its widest, Upper-face height, upper lip to the highest point of the eyelids and Nose width at the nostrils (alar width). Nothing else is required, and the figures stay in your browser.
What information do I need for the Facial Proportion Calculator?
You need Face length, hairline (trichion) to chin (menton), Face width across the cheekbones (bizygomatic), Jaw width (bigonial), Forehead width at its widest, Upper-face height, upper lip to the highest point of the eyelids, Nose width at the nostrils (alar width), Mouth width and Width of one eye, inner to outer corner. The page opens with default figures that give face length : face width of 1.4615, so you can see the scale before entering your own.
What does this Facial Proportion Calculator show?
It shows Face length : face width, Mouth width : nose width, Cheekbone width : jaw width, Facial width-to-height ratio (fWHR), Face width : eye width (canon says 5), Spread of the three vertical thirds, Golden ratio (phi) and Mean distance of the phi-compared ratios from phi, with the working and any warnings for your entries.