Hat Size Calculator
Convert head circumference to US/UK/EU sizing with fit logic, material behavior, and 360-degree measurement visualization.
22.000 in live visualization reference
Recommended Size
US 7
Best fit range: 6 7/8 - 7 1/8
US
7
UK
6 7/8
EU
56 cm
Alpha
M
Fit prediction: Perfect
Fitted caps perform best with exact quarter-size matching.
Regular sizing should feel balanced.
Confidence score: 87%