What is the golden ratio face?
The golden ratio, written φ (phi), is about 1.618. Two lengths are in the golden ratio when the longer one is 1.618 times the shorter. It appears in geometry, in some plant growth patterns, and in a long tradition of art and architecture, which is why people started looking for it in faces too.
A “golden ratio face” is a face where several proportions come close to 1.618. Plastic surgeons and beauty writers have published many such ratios over the years, sometimes with a face mask built from them. Some are easy to measure in a photo; others depend on the hairline or on the side profile, which a single front photo cannot show reliably.
The ratios this golden ratio face test measures
The test uses three ratios that are fully visible in an ordinary front-facing photo:
| Ratio | Measured between | Golden value |
|---|---|---|
| Mouth width ÷ nose width | The two mouth corners, and the two outer edges of the nostrils. | 1.618 |
| Lower lip ÷ upper lip | Height of the lower lip, and height of the upper lip, at the centre. | 1.618 |
| Nose-to-chin ÷ mouth-to-chin | Base of the nose to the chin, and the line between the lips to the chin. | 1.618 |
For every ratio the result table shows your value, the golden value and a match percentage. The large number at the top is the overall golden ratio match. Below it you also see your full attractiveness breakdown, because the golden ratio is only one part of what makes a face look balanced.
Why these three ratios
They are the most commonly cited facial phi ratios that do not depend on hair, ears or profile, and they are stable when the head faces the camera. The lip ratio is the most sensitive to expression, so it gets a wider tolerance in the score.
How to measure your face for the golden ratio
- Use a photo where you look straight at the camera, with the camera at eye level.
- Keep your mouth closed and relaxed. Smiling widens the mouth and thins the lips.
- Stand at least an arm’s length from the camera. Close lenses make the nose look wider, which lowers the mouth-to-nose ratio.
- Upload the photo or take one with your camera and wait for the measurement.
- Leave “Show landmarks and guide lines” ticked to see where the test measured.
Reading your golden ratio results
Match above 90%
All three ratios are within roughly 10% of phi. That is a close golden ratio face by these measurements.
Match between 80% and 90%
Typical. Most faces have mouth-to-nose ratios around 1.4 to 1.6 and lower-face ratios around 1.4 to 1.5, slightly below phi.
Match below 80%
One ratio is far from 1.618. Check it in the table. A low lip ratio often comes from a smile or very full upper lip; a low mouth-to-nose ratio can come from a close-up lens.
Is the golden ratio really the key to beauty?
Probably not on its own. When researchers measure faces that people rate as attractive, they find symmetry and closeness to the average face more consistently than a precise 1.618. Some facial ratios in attractive faces are near phi and others are near 1.5 or 1.4. The golden ratio is a neat ideal from art history, and it is fun to measure, but faces that miss it can be every bit as attractive.
That is why the main attractiveness test gives the golden ratio a 20% weight alongside symmetry, facial thirds, the rule of fifths, jawline, eye spacing and skin.
Golden ratio face vs. other face proportions
- Facial thirds: the forehead, middle face and lower face should be of similar height. The test measures the middle and lower thirds.
- Rule of fifths: the face at eye level should be five eye-widths wide.
- Symmetry: left and right sides mirror each other. See the face symmetry test.