Free Head Circumference to Hat Size Chart
Use our free women's hat size converter to find the perfect fit. Our hat size chart converts head circumference to S/M/L sizes instantly. Perfect for buying sun hats, beanies, and fashion hats online.
Wrap a soft tape measure around your head, about 1cm above your ears and eyebrows where a hat would sit. Keep the tape level.
Place a tape measure around your head about 1cm above your ears and across your forehead where a hat would sit. Keep the tape level and snug but not tight. This measurement is your head circumference.
Women's and men's hat sizes use the same measurement system (head circumference), but women's heads are typically smaller on average. Women's sizes commonly range from S to L (53-58cm), while men's often go from M to XL (56-62cm).
The average women's hat size is S to M, corresponding to a head circumference of 54-57cm (21-22.5 inches). This is approximately US/UK fitted size 6¾ to 7⅛.
| Circ (cm) | Letter | US/UK | EU |
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