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Eye spacing: the one-eye-width rule, tested
Eye spacing compares the gap between your inner eye corners to the width of one eye. About one eye width is the reference. Past roughly 1.2 eye widths the eyes read wide set; under about 0.8 they read close set. The bony orbits that set it are fixed in adults; nasal bridge, brows, and makeup are what shift the impression.
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VerdictAbout one eye width
Verdict
About one eye widthAbout one eye width between the inner corners is typical; past roughly 1.2 eye widths the eyes read wide set, under about 0.8 close set
Do your facial analysis: Facial thirds & ratios →The measurement and the rule
Measure the horizontal distance between the inner corners of your eyes, the intercanthal distance. Then measure the width of one eye from inner corner to outer corner. Divide the gap by the eye width. The guideline says the two should be roughly equal, a ratio near 1.0, which also means five eye widths span the face at eye level.
The five-eye rule is a drawing convention rather than a population measurement, and real faces vary around it in both directions, with substantial differences between ancestries. Adult intercanthal distances commonly run in the low thirties of millimeters, against eye widths of about the same, which is why the ratio lands near 1.0 for most people.
Measuring it properly
Straight-on photo, camera at eye height, head level, eyes open normally and looking at the lens. Measure both spans in pixels and divide. Head rotation is the main error: turning even slightly compresses the far eye and the far half of the gap, which shifts the ratio noticeably in one direction.
Lens distortion contributes too. A phone held close enlarges the central face, which can exaggerate the intercanthal distance relative to the eye widths on either side. Stand back and use optical zoom. Take the measurement more than once, on separate days, before treating the result as a fact about your face rather than about the photo.
How much is too much, and what it costs
Between roughly 0.8 and 1.2 eye widths, spacing is not something observers register; brow shape and nasal bridge carry the impression. Past about 1.2 the eyes read wide set, which reads open and youthful in some faces and makes a broad nasal bridge read broader. Under about 0.8 the eyes read close set, which narrows the read of the whole midface and makes a large nose read larger.
Neither direction has a functional cost within the adult range, and both are typical in some populations, since the rule was calibrated on European-derived faces. The exception is a marked increase in the distance between the bony orbits themselves, a recognized craniofacial finding that is assessed in childhood by clinical examination, not by a photo ratio, and does not appear for the first time in an adult.
What actually changes it
The measurement itself does not change in adults. It is set by the position of the bony orbits and the width of the nasal bridge between them during craniofacial growth. No routine moves it, and surgery to move the orbits is craniofacial surgery reserved for structural conditions diagnosed in childhood, never for a proportion measured from a photo.
The impression has real levers. A narrower nasal bridge, through rhinoplasty or through contouring makeup, makes wide-set eyes read closer; brows extended toward the midline do the same, and brows groomed wider apart do the reverse. Eyeliner carried inward closes spacing, carried outward opens it. Measure your ratio with the facial thirds and ratios tool before deciding which direction, if any, is worth adjusting.
FAQ
Common questions
What is the ideal eye spacing?+
The reference is a gap of about one eye width between the inner corners, the five-eye rule. Between roughly 0.8 and 1.2 eye widths, spacing goes unnoticed. It is a drawing convention rather than a measured norm, and faces vary around it by ancestry.
How wide set is too wide set?+
Past roughly 1.2 eye widths between the inner corners the eyes read wide set, and a broad nasal bridge reads broader with it. Under about 0.8 they read close set and a large nose reads larger. Neither has a functional cost in adults.
How do I measure eye spacing?+
From a level, straight-on photo at eye height, measure the distance between the inner eye corners and the width of one eye, then divide. Any head rotation will skew the result, so square up carefully.
Can eye spacing change?+
Not in adults. It is determined by the position of the bony orbits, which are set during craniofacial growth. What changes the impression is nasal bridge width, brow grooming toward or away from the midline, and eyeliner placement.