What a golden ratio face calculator measures
A golden ratio face calculator measures a few distances on your face, divides one by another, and compares each answer with a reference value. The best-known reference is the golden ratio, about 1.618, which people apply to the length and width of the face.
This calculator measures four ratios from a single photo and compares each one with its reference. Three of them get a fit from 0 to 100 and are averaged into the proportions score; the face length to width ratio is shown but not scored. That score is one of three parts of the full attractiveness test, where it counts for 40% of the total, or two thirds of it when symmetry is left out because your head is turned by more than 5 degrees.
The four ratios and their reference values
| Ratio | How it is measured | Reference used |
|---|---|---|
| Face length to width | Top of forehead to chin, divided by cheekbone to cheekbone | 1.46 to 1.62 |
| Eye spacing to eye width | Gap between the inner eye corners, divided by the width of one eye | 1.0 |
| Nose width to eye spacing | Width of the nose, divided by the gap between the inner eye corners | 1.0 |
| Mouth width to nose width | Width of the mouth, divided by the width of the nose | 1.5 |
The face ratio is given as a range because the usual online figure is "about 1.6". It is shown for reference but left out of the score, because the top point of the face model sits on the upper forehead, not at the hairline, so most photos read lower than the hairline-based figure. The other three are single values. A ratio on its value gets 100. The further it is away, in percentage terms, the lower its fit.
How the proportions score is worked out
- The face model marks points on your face, and the distances between them are measured in the photo.
- All four ratios are calculated and compared with their references.
- The size of the gap, as a share of the reference, is turned into a fit from 0 to 100. A gap of 5% still scores about 90, and the fit falls as the gap grows.
- The fits of the three scored ratios are averaged into the proportions score you see.
The table that appears with your result lists your own value for each ratio next to the reference, so you can see which one is moving the score.
How to take a photo for a steady reading
- Face the camera straight on. A turned head shortens one half of the face and changes the width-based ratios. Photos where the head is turned by more than about 11 degrees are refused, and smaller turns are corrected by rotating the measured points back to face the camera.
- Keep the camera at eye level. Held low, it stretches the chin and nose, so the face looks longer.
- Stand a little back. Very close selfies exaggerate the nose and make the face look rounder.
- Keep your face relaxed and your mouth closed. Smiling widens the mouth, and a raised chin changes the length.
- Show the whole face. The face should fill at least 25% of the photo width, with your forehead and chin in view.
Limits of golden ratio face measurements
- The references are rules of thumb. They circulate online and have no standing as a scientific standard. Treat them as a way to look at your face, not as a target.
- The forehead point is not your hairline. The top measuring point sits on the forehead and depends on the model, so the face length is approximate.
- A lens changes ratios. Wide-angle phone cameras held close change the proportions of the nose and face.
- It is not a beauty or health assessment. A set of ratios says nothing about attractiveness, character or health. See the disclaimer.
To see left-right balance instead, use the face symmetry test. For all three measurements and an overall score in one go, go back to the attractiveness test.
Golden ratio face FAQ
What is the golden ratio for a face?
The golden ratio is the number 1.618, often written as phi. Online guides say a face is closer to ideal when its length is about 1.6 times its width and when features such as the eyes and nose follow similar simple ratios. These are popular rules of thumb, not a scientific measure of beauty.
Is the golden ratio a scientific standard of beauty?
No. The reference values used here are widely shared figures, and this site does not claim they predict how attractive a face is. Many attractive faces sit far from them, and many people with ratios close to them do not stand out.
Why is my face length to width ratio lower or higher than the range?
The range used here is 1.46 to 1.62. The length is measured from the top-of-forehead point (not the hairline) to the chin and the width from cheekbone to cheekbone, so hairline, camera distance and head tilt all move it. It is shown for reference and not counted in your score. Take the photo straight on from a little farther away for a steadier number.
Why do I need a front-facing photo?
Every ratio compares two distances on the face. If the head is turned or tilted up or down, the distances shorten unevenly and the ratios change. The test rotates the measured points back to face the camera, and refuses photos where the head is turned too far, giving no score for them.
Is my photo uploaded for the golden ratio calculator?
No. The face model runs in your browser, the photo stays in memory in your tab, and neither the photo nor the facial points are sent to a server or to analytics.