Eye spacing
The distance between your pupils divided by your face width. Research peak: about 46%.
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Upload a front-facing photo. Your browser measures your eye spacing, eye-to-mouth distance and more in about a second, and compares them with what research found and with a reference set of 1,088 photos. Your photo is not uploaded.
Drop a front-facing photo here
JPG, PNG, WebP or HEIC. Level head, neutral expression, camera at eye level.
Measured in your browser. Your photo never leaves your device for this tool.
The golden ratio, about 1.618, is the idea that a proportion repeating through a face makes it beautiful. It is popular online and weakly supported: studies that measured real attractiveness ratings did not find 1.618 to be the peak.
What research did find is more modest. Pallett, Link and Lee (2010) asked people to judge faces whose features were moved by small amounts. Faces were rated most attractive when the eyes were spaced at about 46% of the face’s width and the distance from eyes to mouth was about 36% of the face’s length. Those are close to average proportions, not a magic constant.
Google’s MediaPipe Face Landmarker finds 478 points on your face inside your browser, including your pupils. After levelling a tilted head we measure each ratio and compare it with two yardsticks: the figure from the research above where one exists, and the middle half of a reference set of 1,088 photos from a public dataset.
One honest limit: the model’s top landmark is on the forehead, not the hairline, so face length here is shorter than in the research. Expect the eye-to-mouth ratio to read higher than 36%, and compare how you sit against the reference set instead of the decimals.
The distance between your pupils divided by your face width. Research peak: about 46%.
From the line between your pupils to the centre of your mouth, divided by face length. Research peak: about 36% (measured to the hairline, so ours reads higher).
Your mouth width divided by the width of your nostrils. Often quoted, rarely tested; shown against the reference set only.
Face length divided by face width, in the same window as the others.
A ratio near a research figure does not make a face more attractive, and a ratio far from it does not make it less so. Real faces vary widely and the effects in the research are small. Use the numbers to learn what your photo shows, not to judge yourself.
Angle, lens and expression move every number. Wide-angle selfies stretch the middle of the face, a smile changes the mouth, and a head turned a little narrows one side. For the fairest reading use a level, front-facing photo at arm’s length.
It measures proportions in one photo. It does not measure beauty, health or worth, and the reference set is a public dataset of celebrity photos, not the world. Treat it as a way to see your proportions, and ignore it if it does not help.
Common questions
The golden ratio is about 1.618. The claim is that faces with parts in that proportion look most beautiful. Studies that asked people to rate faces did not find 1.618 to be the peak; they found modest preferences near average proportions.
The measuring is real; the beauty claim is not well supported. This calculator measures actual ratios from your photo and compares them with research findings and a reference set, and it says plainly that none of them decides how attractive a face is.
In Pallett, Link and Lee’s 2010 study, faces were rated most attractive when the eyes were spaced at about 46% of face width and the eyes-to-mouth distance was about 36% of face length. Those are research findings about perceived attractiveness in manipulated faces, not rules.
The research measured face length from the hairline. The face model’s top point is on the forehead, so the length here is shorter and the ratio reads higher. Compare yourself with the reference set instead.
No. Everything is measured in your browser and the photo is not uploaded for this tool. The only download is the face model, about 7 MB, once.
They share the same face detection but answer different questions. The face map scores mirror balance, thirds, fifths and length-to-width against a reference set. This page measures eye spacing, eye-to-mouth distance and mouth-to-nose width and compares them with research figures.
Proportions are fixed by your face, but how they read in a photo is not: a level head, eye-level camera, the 2x lens and soft light all change the numbers.
Nanorater
Ratios measure proportions. The AI face rater judges light, angle and expression and gives you a retake plan.