CalcMountain

Hat Size Calculator

Measure around your head just above the ears and enter the circumference to find your fitted hat size. Results include US, UK, metric, and generic S/M/L sizing for easy shopping.

Inputs

Results

US Fitted Size

7 1/4

Generic Size

M

Inches

22.50

Centimeters

57.1

Hat Size Details

MeasurementValue
Head Circumference (in)22.50 inches
Head Circumference (cm)57.1 cm
US Fitted Size7 1/4
Generic SizeM

Frequently Asked Questions

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