Golden-ratio calculator

See the measurements on a portrait, adjust the points, and compare its proportions with a golden rectangle.

Example 1

Check the forehead, chin, and cheek points on your front-facing portrait.

Portrait with adjustable forehead, chin and cheek measurement points

A · HeightB · Width

Drag a point or focus it and use the arrow keys. Hold Shift for larger steps.

Example measurement

Face height ÷ face width

1.25: 1

1.25 times as tall as it is wide between these points.

A · Forehead to chin: 461 photo pixels
B · Cheek to cheek: 369 photo pixels

Compare the shapes

A golden rectangle is 1.618× as tall as it is wide. Both shapes below use the same width.

This portrait1.25 : 1

Golden rectangle1.618 : 1

A comparison of shapes, not an attractiveness rating.

What the points measure

A · Upper forehead to chin

B · Outer cheek to outer cheek

Read the portrait first

Start with either example or upload your own portrait. Automatic detection estimates four starting points. Check that the top point is on the upper forehead, the bottom point is on the chin, and the side points sit at the outer cheeks below the eyes.

Drag a point to adjust it. You can also focus a point and use the arrow keys; hold Shift for larger moves. Reset points returns to the detected positions for that photo.

Understand the number through the shapes

A ratio of 1.25 means the forehead-to-chin distance is 1.25 times the cheek-to-cheek distance. The two pixel measurements refer to the source photo, so resizing the preview does not change the ratio.

The golden ratio is φ = (1 + √5) ÷ 2, approximately 1.618. Both illustrated rectangles have equal widths: one uses your measured ratio and the other uses 1.618. The different heights make the comparison visible.

Choose a useful photo

Face the camera with a relaxed expression and keep the full face in frame. Even light and a visible forehead make the points easier to review. A heavily turned head, hidden cheek or cropped chin changes what can be measured.

This is a comparison of distances in a two-dimensional photo. It does not correct perspective or turn a proportion into an attractiveness rating. Changing the point locations changes the result, so use consistent positions when comparing photos.

Keep your work while exploring

Your uploaded portrait stays available while you switch between examples or the guide. Adjustments are kept for each portrait during this visit. Use Remove photo to clear the uploaded portrait from the tool.

Analysis runs in your browser. The detector downloads its model when needed, then processes the photo on your device. This calculator does not send the photo to an image-generation service or start a paid generation.

Questions, answered

How do I use the golden ratio face calculator?

Upload a clear portrait, review the four detected points, and adjust any that miss the intended face edge. The result and rectangle comparison update as you move the points. The examples let you try the same controls immediately.

What does a result such as 1.25 : 1 mean?

The upper-forehead-to-chin distance is 1.25 times the distance between the cheek points. A golden rectangle is 1.618 times as tall as it is wide. The illustration compares those two proportions at the same width.

Does this calculate a beauty score?

No. It compares one pair of distances in a photo. It does not grade attractiveness, evaluate the whole face or say that a face should match the golden ratio.

Why can I adjust the detected points?

Automatic points are estimates. Hair, lighting, pose and cropping can affect their placement. The top point represents the upper forehead, not a guaranteed hairline measurement; the side points define the cheek span you are comparing.

Is my photo uploaded for analysis?

The measurement runs on your device. The tool downloads the detection model, but it does not upload your photo to that model host. Your photo remains in this page’s local working state during the visit and can be cleared with Remove photo.

What if no face is found?

Choose a clear front-facing photo with one person, showing the forehead, chin and both cheeks. JPEG, PNG, WebP and AVIF portraits up to 20 MB are supported. If the detector cannot load, check the connection and try again; the previous portrait remains available.

Are these measurements in centimeters or inches?

The displayed distances are pixels in the source photo. The ratio has no unit because both measurements use the same pixel scale. A photo alone does not establish the physical size of a face.