How To Know What Size Hat To Buy May 2026

Measure 2–3 times to ensure your results are consistent.

Place the measuring tape around your head, approximately 1/8 to 1/2 inch (0.3–1 cm) above your ears and across the middle of your forehead —exactly where the hat's sweatband will sit. how to know what size hat to buy

Most manufacturers categorize hats into "Generic" (S, M, L) or "Numerical" (US/UK) sizes based on the circumference you just measured. Measure Your Hat Size, Head Circumference Measure 2–3 times to ensure your results are consistent

To get an accurate measurement, you will need a soft, flexible measuring tape. If you do not have one, you can use a piece of non-stretching string or ribbon and then measure that against a ruler later. Measure Your Hat Size, Head Circumference To get

The tape should be level and snug, but not tight. A good rule of thumb is to allow enough space for one finger to fit between your head and the tape.