FWHR and visible face length-to-width
The visible face ratio divides top-mesh-to-chin distance by cheekbone-anchor width. The FWHR-style ratio uses cheekbone width divided by brow-midpoint-to-upper-lip distance. Different calculators and research methods choose different vertical anchors. Compare values only when the formulas match; neither ratio is a personality test or a universal beauty threshold.
Midface ratio and eye spacing ratio
Here, midface ratio means iris-center distance divided by the distance from the midpoint of those centers to the upper lip. Eye spacing compares the inner-eye gap with average visible eye width. These definitions separate two commonly confused questions: how compact the central face appears, and how the gap between the eyes relates to the openings themselves.
Jaw, mouth, nose and lower-face proportions
The remaining ratios compare jaw width with cheekbone width, mouth width with face width, nose width with mouth width, and nose-base-to-chin length with visible face height. The lower-face share is a percentage of the measured span, not a population percentile. Tap each card to check its anchors before interpreting the number.
Frequently asked questions
What is a good midface ratio?
There is no target prescribed here. First check the definition: another tool may divide different distances. This calculator provides the formula and a photo overlay.
Can the calculator measure facial thirds?
It measures visible lower-face share. Classical thirds require the true hairline, which this landmark model does not identify; we do not substitute a mesh boundary for it.
Are these measurements in millimetres?
No. Ratios are unitless, and lower-face share is a percentage. A photo without a calibrated reference cannot establish absolute millimetres.