Measurement reference · FaceFluent editorial · September 13, 2026
Jaw width to cheekbone width
The width of the jaw at the angle of the mandible, divided by the width across the cheekbones. Lower values read as a tapered face, higher values as a squarer one.
Also called face taper, bigonial to bizygomatic ratio.
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
Distance between the left and right jaw-angle landmarks over the distance between the left and right cheekbone landmarks, on the roll-corrected mesh.
What moves the number
Head turn most of all — even a small yaw foreshortens one side of the jaw. Also weight, jaw clenching, and whether the hair or a collar obscures the jaw angle.
What it cannot tell you
It cannot separate bone from the soft tissue sitting over it, and it does not identify a face shape category. Both tapered and square faces are common and neither is a defect, and with no published population range behind it the number describes your photograph rather than placing you anywhere.
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.
A width ratio gives one description of an image. Styling decisions need more context.
Read: Reading jaw and cheek proportionsThe scanner calculates this on your own device. Nothing is uploaded.
Run the free scannerThis page is educational. It is not a clinical assessment, a diagnosis, or a claim about how you look. Read the methods and limitations.