Face geometry
Facial Proportions (Golden Ratio) Calculator
A golden ratio face calculator compares the proportions between facial landmarks to 1.618 and reports each ratio — it describes proportion, not beauty.
- Each facial ratio beside 1.618, with the plain difference
- Your facial thirds: forehead, midface and lower face as shares of face length
- No beauty rating: the golden ratio is a reference, not a target
Quick answer
Your proportions, each compared with 1.618.
A golden ratio face calculator compares the proportions between facial landmarks to 1.618 and reports each ratio — it describes proportion, not beauty.
Upload a photoHow it works
Choose a photo
Use a front-facing photo with your hair off your forehead, looking straight at the camera.
We find your landmarks
Points from hairline to chin and across the face are located in your browser.
We measure
Face length to width, eye spacing, nose and mouth width, and the three vertical thirds are measured.
You get your ratios
Each ratio is shown with its value and how far it sits from 1.618.
The ratios we compare with 1.618
| Ratio | Measured between |
|---|---|
| Length : width | Hairline to chin, against the widest point of the face |
| Inter-eye span : eye width | The distance across both eyes, against the width of one eye |
| Nose bridge : nose width | The length of the nose bridge, against the width of the nostrils |
| Mouth width : nose width | The width of the mouth, against the width of the nose |
| Facial thirds | Hairline to brow, brow to nose base, nose base to chin, as shares of face length |
How this was analysed
How we handle your photo
What happens from the moment you choose a photo:
Your photo is resized and its location and camera metadata removed before anything is sent.
Face landmarks are located in your browser. If your browser can't, they are found on our server instead, by our own model or Amazon Rekognition.
The photo is sent once over an encrypted connection to check lighting and sharpness, and for colour tools to sample your skin. It is held in memory for that request and never written to disk or a database.
The measurements from your read, saved to your profile, which works without an account. Export or delete them any time.
Your photo is never used to train models. We don't keep it, so it can't be.
How we check our method
FaceAuraAI publishes its method, a rule check anyone can re-run and its bias notes — not scan totals or accuracy percentages. Each result carries a confidence label based on that photo's quality and how clear-cut the result was.
Stated selection biases
- Selfie uploaders who choose to use FaceAuraAI tools
- Front-facing photos with sufficient landmark confidence
- Landmarks found in the browser where it can, on the server where it can't
- English-first marketing traffic until locale depth catches up
- No age, region, or ethnicity stratification unless explicitly sampled and labeled
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Frequently Asked Questions
Is the golden ratio calculator free?
Yes. Guests get 2 free reads a day, and a free account gets 5 a month. The limit is checked before you choose a photo, so you never upload and then hit a paywall.
What is the golden ratio?
The golden ratio is about 1.618, the number a line is divided by when the whole relates to the longer part as the longer part relates to the shorter. It appears in geometry and art, and is often applied to faces.
Is a face closer to 1.618 a better face?
No. The golden ratio is a mathematical reference, not a measure of beauty, and faces don't need to match it. The calculator reports proportion only.
What are facial thirds?
Facial thirds divide the face vertically: hairline to brow, brow to the base of the nose, and nose base to chin. Many faces are close to equal thirds; each is shown as a share of face length.
Do you store my photo?
No. Your photo is used for this one read and then discarded; it is never written to disk or a database. What we keep are the measurements, saved to your profile, which you can export or delete at any time.
How reliable is the result?
Every result comes with a confidence label based on the quality of your photo: lighting, sharpness, head angle and how many landmarks were measured directly. We don't publish a single accuracy percentage, because it would depend on photos we haven't seen. A straight-on photo in even light gives the most reliable read.