Free AI tool

Facial Proportions Calculator

Artists and surgeons describe faces with two simple rules. The **rule of thirds**: hairline-to-brow, brow-to-nose and nose-to-chin are roughly equal. The **rule of fifths**: the face is about five eye-widths wide. Upload a photo to see how your face measures up on both.

  • Photo never uploaded
  • Results in seconds
  • No sign-up

Get your result in 3 steps

1

Add a photo

Upload a front-facing photo or turn on your camera.

2

AI measures your face

478 landmarks are placed and measured right in your browser.

3

Get your result

See your match, the measurements behind it and what to do next.

Facial thirds

ThirdFromTo
UpperHairlineBrow (glabella)
MiddleBrowBase of the nose
LowerBase of the noseChin

Within the lower third, the distance from your nose to your lips is ideally half the distance from your lips to your chin.

Facial fifths

Divide the face vertically into five equal parts: each eye takes one fifth, the gap between the eyes is one fifth, and the space from each outer eye corner to the side of the face is one fifth.

The model doesn't see your hairline, so your upper third is estimated.

Your photo stays on your device

The analysis runs entirely in your browser using an on-device face model. Your photo is never uploaded, stored or seen by anyone, and nothing is saved when you close the page. Read our privacy policy and how our detector works.

Frequently asked questions

What are ideal facial proportions?

Equal facial thirds and a face about five eye-widths wide are classic artistic guidelines. Real faces vary a lot.