Read the definition
Every number identifies exactly which two visible distances are compared.
Free facial ratios calculator
See the measurements behind your facial proportions.
Turn 478 local landmarks into readable length, width, eye-spacing, midface and lower-face relationships—without uploading the photo.
Analyze my photo freeOn-device preview
Calculate your facial ratios locally
Photo stays on this device
Drop a clear portrait hereor choose a JPEG, PNG or WebP · up to 10MB
Your explainable preview appears here
We map geometry on your device. Your photo is not sent to our server for the free preview.
- One front-facing adult face
- Even light, neutral expression
- No beauty filters or heavy angles
Local landmark analysisNo face recognitionNot a medical assessment
What this tool measures
Ratios make different image sizes comparable.
Pixel distances alone change when an image is cropped or resized. Dividing one facial distance by another creates a ratio that can remain more stable across similar front-facing photographs.
The calculator uses cheekbone width, visible face length, eye width, nose width, mouth width and chin-to-nose length. It reports values rather than pretending every face should fit a narrow ideal range.
Important: Results depend on the visible landmarks in one 2D image. They are not physical measurements and should not be used for clinical decisions.
How to read the result
Three principles keep the numbers useful.
Control the photo
Use a front-facing, eye-level camera to reduce perspective distortion.
Track broad patterns
Small decimal changes between casual selfies are usually not meaningful.
Common questions
A more honest way to measure.
Are these measurements in centimeters?
No. They are dimensionless relationships calculated from normalized image landmarks.
Can I compare two different people?
You can compare definitions, but camera and pose differences may be larger than the facial difference you are trying to observe.
Does the tool save my measurements?
The free tool does not send or save the photo or measurements. Paid reports are saved for 30 days so the buyer can download them.
More local tools
Continue your face analysis.
01
Face shape analyzer
Compare forehead, cheekbone, jaw and length proportions.
Open free tool 02Face symmetry test
Measure pose-adjusted left-to-right landmark consistency.
Open free tool 03Golden ratio face
Explore how your visible ratios compare with the historical φ reference.
Open free tool 04Facial ratios
See eye spacing, face width, midface and lower-face relationships.
Open free tool 05Jawline analysis
Understand jaw taper, width and front-view balance.
Open free tool