Measurement reference · FaceFluent editorial · September 13, 2026
Midface ratio
The distance from the pupil line down to the mouth, expressed against the distance between the pupils.
Educational method only. Personal numerical values are currently unavailable in the free preview and reports under the current offer. Existing purchases retain their purchased scope.
Also called midface proportion, midface compactness.
Reference range
None.
We have not validated a population reference interval for this photographic method. Published anatomical measurements do not automatically validate mesh-based estimates.
How we calculate it
We take the midpoint of the two pupil landmarks, measure straight down to the center of the mouth, and divide by interpupillary distance so the result does not depend on image size.
What moves the number
Camera height and head pitch, strongly. Looking slightly up or down changes this number more than it changes most of the others.
What it cannot tell you
We show this one without a band. It is a real and reproducible measurement of a photograph, but we could not find a published population range for it that we were willing to print, so we do not pretend to have one.
References
None. We have not found a published population range for this measurement, so there is nothing here to cite. We would rather show an empty list than a decorative one.
Midface ratio is easy to calculate and reproducible. We still print no reference range beside it, and that is deliberate.
Read: A measurement published without a bandTry a haircut on your photo. On-device landmark annotations are optional and stay in this browser.
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