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United Kingdom Size 3.5–5 to US: 8.5–10.5

Cross-market men’s sock conversion mapping 3.5–5 specifications into 8.5–10.5.

From Standard & Size
UK
Converted Equivalent
US
4–5.5
Based on row equivalence: US 4–5.5 | EU 35–37
Standard cross-walk matching active anthropometric row parameters.
United Kingdom Size 3.5–5 to US: 8.5–10.5 Conversion

Analyzing Sock Size Equivalence Across Markets

United Kingdom Size 3.5–5: Corresponds to a US shoe size range of 4–5.5, foot length of 22–23.5 cm\text{cm} (8.7–9.3 in\text{in}), and fit classification Snug / Compact Fit.

US: 8.5–10.5: Corresponds to a US shoe size range of 8.5–10.5, foot length of 26.5–28 cm\text{cm} (10.4–11 in\text{in}), and fit classification Standard Regular Fit.

Other Conversions to US: 8.5–10.5

United Kingdom Size 3.5–5 → us-8-5-10-53.5–5 to us-8-5-10-5
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United Kingdom Size 5.5–7.5 → us-8-5-10-55.5–7.5 to us-8-5-10-5
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United Kingdom Size 8–10 → us-8-5-10-58–10 to us-8-5-10-5
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United Kingdom Size 10.5–12.5 → us-8-5-10-510.5–12.5 to us-8-5-10-5
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United Kingdom Size 13–14.5 → us-8-5-10-513–14.5 to us-8-5-10-5
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United Kingdom Size 15–17.5 → us-8-5-10-515–17.5 to us-8-5-10-5
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