Sizing Charts
3 indexed entriesPart of Apparel, Shoes & Accessories.
Items
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Hat Sizes
Hat sizes are based on head circumference measured about 1cm above the ears. US sizes represent head diameter in inches, calculated by dividing circumference in centimeters by 8 -- so a 56cm head is a US size 7. UK sizes use a related but not identical numeric scale.
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Ring Sizes
Ring sizes are internationally standardized based on internal circumference in millimeters. A US Size 7 features an inside diameter of 17.35mm, inside circumference of 54.5mm, UK Size N 1/2, and EU Size 54.
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Shoe Sizes
Standard shoe size conversions are derived directly from foot length in millimeters (Mondopoint). A US Men's 10 corresponds to UK 9.5, EU 43.5, and 28.0 cm (280 Mondopoint).