how do you measure your head for a hat?
2026-08-19
wrap a tape measure around the widest part of your head — roughly one finger above your ears, straight across your eyebrows, and around the bump at the back of your skull. keep it level, like a ring around a cylinder, not diagonal. the number you get, in centimeters, is your head size. that's it. no formulas, no guessing from your t-shirt size.
if you don't have a soft tape, a piece of string works. wrap it the same way, mark where it meets itself, then lay it flat against a ruler. a fabric tape is easier to keep level, but string and a ruler will get you within a few millimeters, which is close enough for a hat.
do it twice. most people measure a little differently the second time, and the gap tells you whether to trust the number. if the two readings differ by more than half a centimeter, take a third and use the middle one.
snug, not tight
the tape should sit close to your skin without pressing in. if you can slide a finger under it comfortably, that's about right. pull it any tighter and you'll undersize yourself — the hat will look fine on the shelf and pinch within an hour.
where you measure matters more than people expect. move the tape up an inch and you'll read smaller, because heads narrow toward the crown. always measure at the widest point — that's the part the hat actually has to clear.
structured cotton behaves differently from knit
a lot of sizing guides are written for stretch fabrics — jersey caps, ribbed beanies — that forgive a centimeter either way. a hat cut from a stiffer cloth, like cotton twill with a shaped crown, doesn't give the same way. it holds the shape it's cut in. so if your measurement falls between two sizes, size up rather than down; a hat that's slightly loose softens with wear, but one that's slightly tight never really relaxes.
that's the logic behind how little bit seoul is made — each piece is cut to order from a head measurement in centimeters, not picked off a rack, because a six-panel dome crown in twill only sits right if it was sized for the head wearing it, not the nearest standard.
write your number down somewhere you'll find it again. head size doesn't change much after adulthood, so once you have it measured properly, you have it for good.
light black, bell-shaped bucket hat220 USDT · made to order, ships in about 8 weeks · seoulsee the hat →