Free tool · runs in your browser
Golden Ratio Face Calculator
The golden ratio is 1.618. Symmi takes the five facial proportions the classical rule actually uses, measures each from 478 landmarks, and shows how close every one sits to φ. Then it tells you what that does and does not mean.
Drop a photo, paste one, or choose a file
Straight-on, whole face visible, even light. JPG, PNG or WebP.
Runs in your browser. Your photo never leaves your device.
How it is measured
Five ratios. Each one compared with 1.618.
The tool measures five pairs of distances the Marquardt-style analyses use, divides each pair, and reports how far the result is from φ as a percentage. The overall match is the mean of the five. A face with all five near φ is rare; most attractive faces match on two or three.
- Face length ÷ face width
- Estimated hairline to chin over cheekbone-to-cheekbone width. The headline ratio.
- Mouth width ÷ nose width
- Mouth corner to corner over nostril to nostril.
- Eye span ÷ mouth width
- Outer eye corner to outer eye corner over mouth width.
- Nose base–chin ÷ lower lip–chin
- Two lower-face distances that share the chin point.
- Eye line–chin ÷ nose base–chin
- Pupil line to chin over nose base to chin. The proportion that places the eyes in the face.
Measure it yourself
How to calculate your golden ratio score yourself
- 1Take a straight-on photo with your hair pulled back, head level and a neutral face.
- 2Measure one pair from the table above, for example face length (hairline to chin) and face width (cheekbone to cheekbone).
- 3Divide the longer distance by the shorter one. For example 19.5 cm ÷ 13.4 cm = 1.46.
- 4Turn it into a match with φ = 1.618: 100 − (|1.46 − 1.618| ÷ 1.618 × 100) = 90%.
- 5Repeat for the other four pairs and average the five matches. That average is the overall score the tool shows.
Skip the ruler: the free tool above does it from one photo in about 30 seconds ↑
What's normal
What is a good golden ratio score?
A single ratio above 90% is common. An average above 90% across all five is unusual.
- 90% and above
- How it reads: Unusually close to φ
- Note: Rare as an average of all five ratios.
- 80% to 90%
- How it reads: Typical
- Note: Most faces land here, often with one or two ratios near φ.
- Below 80%
- How it reads: One ratio is far out
- Note: The results table shows which one.
In peer-reviewed tests the golden ratio explains only a small share of how attractive people find a face. Treat the score as a description of proportions, not a beauty rating.
Sources
What this is based on.
The measurement and its reference ranges come from published research. Studies use different methods and populations, so compare your number with the range shown on this page rather than with other tools.
- 1.
Holland E (2008). Marquardt's Phi mask: pitfalls of relying on fashion models and the golden ratio to describe a beautiful face. Aesthetic Plastic Surgery. PubMed 18175168
Critique of the golden-ratio 'Phi mask' as a description of attractive faces.
- 2.
Pallett PM, Link S, Lee K (2010). New "golden" ratios for facial beauty. Vision Research. PubMed 19896961
Found the most attractive proportions were not the golden ratio (eye–mouth distance about 36% of face length).
- 3.
Farkas LG, Hreczko TA, Kolar JC, Munro IR (1985). Vertical and horizontal proportions of the face in young adult North American Caucasians: revision of neoclassical canons. Plastic and Reconstructive Surgery. PubMed 3883374
Tested the classical facial canons on real faces; most did not hold exactly.
- 4.
Kartynnik Y, Ablavatski A, Grishchenko I, Grundmann M (2019). Real-time facial surface geometry from monocular video on mobile GPUs. arXiv. arXiv:1907.06724
The face-mesh model that places the 468 surface landmarks this tool measures from.
- 5.
Ablavatski A, Vakunov A, Grishchenko I, et al. (2020). Real-time pupil tracking from monocular video for digital puppetry. arXiv. arXiv:2006.11341
The iris model that adds 10 eye landmarks (478 in total), used for pupil-based reference lines.
Our own data: how much each reading moves when the same face is photographed again is published on the methodology page. How we choose sources.
Related tools
FAQ
Is the golden ratio real for faces?+
As a description of a few proportions viewers tend to like, partly. As a rule that predicts attractiveness, no: peer-reviewed tests find it explains a small share of ratings. Treat it as a fun benchmark with a measured number behind it, not a verdict.
What is a good golden ratio score?+
Matches over 90 percent on a single ratio are common. An overall mean above 90 percent is unusual. Below 80 percent usually means one ratio is far out, and the table shows which.
Can I change any of these?+
Width readings shift with puffiness and jaw tone; the nose-to-mouth and eye ratios are largely bone. The Symmi app grades each of its 19 readings as bone or trainable so you do not spend time on the fixed ones.
Is the photo stored?+
No. It never leaves your browser.
One reading here.
Nineteen in the app.
A controlled scan, every reading against its ideal band, bone vs trainable, a plan, and a 3D model on Face ID iPhones.