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Everyday Life Calculators

Sock Size Calculator

Convert a US shoe size into an approximate sock size and size category.

Approximate sock size
Size category
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About the Sock Size Calculator

Sock sizing traditionally runs about one number higher than shoe size, since socks are labeled by their stretched length rather than exactly matching shoe sizing charts.

Formula: Sock Size ≈ US Shoe Size + 1, then grouped into the common Small, Medium, Large and X-Large categories used on most sock packaging.

Because sock sizing isn't standardized as tightly as shoes, treat this as a solid starting point and check a specific brand's chart if you're between categories.

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