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FWHR Ratio Calculator
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Check your fwhr ratio from one front-facing photo. This tool divides estimated cheekbone width by the vertical height from brow peaks to the upper lip, draws those boundaries and returns the number. It runs locally in your browser. The result is one way to describe upper-face shape, not a medical reading or an attractiveness score.
Cheek width and short face height
FWHR stands for facial width-to-height ratio. Its short height crosses the middle of the face rather than extending to the chin. This calculator starts that height at the mean level of the two brow peaks and ends at the upper lip. Some published methods start at the upper eyelids, so their numbers cannot be compared directly with this fwhr ratio. The cheekbone landmarks define the width above the jaw.
The brow-to-lip denominator in this fwhr ratio
Because both distances come from the same leveled image, their pixel units cancel in the division. This makes the fwhr ratio useful for comparing similarly framed photos without a physical ruler. It does not cancel projection error: a slight turn can shorten the visible cheek span, and raised brows can lengthen the measured height.
Reading a ratio across methods
Ranges around 1.7–2.1 are commonly cited online, but they are not medical standards and may refer to different height definitions. A larger fwhr ratio can come from greater measured width or a shorter brow-to-lip distance. It cannot identify which factor changed until you inspect the lines. Compare a repeat photo using the same lens and landmark method rather than collecting unrelated online numbers.
For a hypothetical example, a 160-pixel cheek span divided by a 100-pixel brow-to-lip height gives an fwhr ratio of 1.60. If raised brows make the detected height 90 pixels while cheek width stays 160, the displayed value rises to about 1.78. The face did not widen; only the denominator changed in the image. That is why relaxed brows and a consistent endpoint definition matter more than a claimed universal reference interval.
There are two independent checks for a surprising fwhr ratio. First, see whether the green cheek span reaches both outer cheek landmarks; an oblique head turn can shorten the numerator. Second, locate the brow peaks and upper lip that set the vertical denominator; lifted eyebrows or an open mouth can change that height. A repeat fwhr ratio close to the first is more meaningful when both checks pass. The number cannot say whether width, height, expression or projection caused a difference unless the underlying line positions are inspected.
When cheek width is underestimated
A three-quarter view hides part of the far cheek and can shorten the measured numerator, while a hard shadow may make its boundary harder to detect. If the green cheek line stops short of the visible contour, the fwhr ratio may be low for a purely photographic reason. For shared framing basics, read how to take a photo for a PSL rating.
Why published FWHR ranges differ
One paper may measure face height from the upper eyelid, another from the brow center, while this fwhr ratio begins at the mean brow-peak level. All three can describe the same person with different decimals. A commonly quoted 1.7–2.1 band therefore cannot be imported as a normal interval without matching its endpoints. FWHR also cannot predict an individual’s aggression or character.
The calculator uses one formula for all uploaded faces and does not infer a preferred male or female value. A neutral brow and unobstructed cheek edges improve repeatability; they do not alter the underlying width-to-height anatomy. Styling can change the perceived face shape without changing the fwhr ratio, which is why a practical portrait decision should not be reduced to this number.
Width alone does not define face shape
The face proportions table also includes this FWHR row, while the face shape detector considers forehead and jaw widths in addition to cheek width. A broad cheek span can influence both readings, but their labels arise from different calculations.
FWHR ratio FAQ
How do I measure fwhr?
Divide cheekbone width by the brow-to-upper-lip vertical height used by this tool.
What is a good facial width to height ratio?
There is no universal good value. Online ranges vary with landmark definitions.
Why is my fwhr different from a study?
A study may place the upper endpoint at the eyelids rather than the brow peaks.
Does a wide face always mean high FWHR?
No. The height denominator matters too.
Can FWHR tell if someone is aggressive?
No. This photo ratio should not be used to judge an individual’s behavior.
Is my photo sent to an API?
No. The calculation and line overlay run in your browser.