Rule of Fifths Test

The rule of fifths says a face is about five eyes wide. Upload a front-facing photo and the test measures your five widths, from the edges of the face to the corners of your eyes.

Rule of Fifths Test Front-facing photo, face clearly visible

Your marked result appears here

The overlay will show facial landmarks and measurement guides.

Analysis failed

Please try again with a clearer front-facing photo.

Example Result

Results might be inaccurate Your face isn't centered or is tilted toward the camera in this photo, which can skew the measurements and scores. For the most reliable result, retake the photo looking straight into the camera.

Measured Value

0.0000

Average gap to an even 20% split

In Range

0.00% 5.26%

Optimal 0.00% – 3.38%

Perfect 0.00% – 1.90%

The rule of fifths splits the face into five vertical strips at the outer face edges and the corners of the eyes. In the classic ideal every strip is about one eye wide, so each takes up 20% of the face width. The value shown is how far your five strips are from that even split, on average.

Why it mattersWhen the eyes and the gap between them take up even shares of the face, the eyes tend to look naturally placed. It is one small part of facial balance, not a verdict on looks.

Based on 1564 analyzed faces in the reference sample.

Perfect range Optimal range Reference range This face Fifths guides

How the rule of fifths works

Picture six vertical lines across your face: one at each side of the face, one at each outer eye corner and one at each inner eye corner. They cut the face into five sections. In the classic ideal all five are the same width, about one eye wide, so each takes up 20% of the face.

The test finds those points with facial landmarks and works out what share of the face width each section takes up. Your result is the average gap between your five shares and 20%. Shares of 19, 21, 20, 20 and 20% give an average gap of 0.4%. Most faces land between 0% and 5%.

It is one guideline among many. Real faces vary, and an uneven split does not mean a face looks wrong.

For an accurate result

Look straight into the camera and keep your head level. A turned head makes one side look narrower.
Keep both cheeks visible. Hair over the side of the face can hide where the face ends.
Hold the camera at arm's length or further. Close-up selfies stretch the middle of the face.

How Attractive am I?

Get My Rating