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United Kingdom Size 3.5–5 to US: 15.5–18

Cross-market men’s sock conversion mapping 3.5–5 specifications into 15.5–18.

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: 15.5–18 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: 15.5–18: Corresponds to a US shoe size range of 15.5–18, foot length of 32.5–35 cm\text{cm} (12.8–13.8 in\text{in}), and fit classification Max Volume / Bariatric & Therapeutic.

Other Conversions to US: 15.5–18

United Kingdom Size 3.5–5 → us-15-5-183.5–5 to us-15-5-18
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United Kingdom Size 5.5–7.5 → us-15-5-185.5–7.5 to us-15-5-18
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United Kingdom Size 8–10 → us-15-5-188–10 to us-15-5-18
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United Kingdom Size 10.5–12.5 → us-15-5-1810.5–12.5 to us-15-5-18
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United Kingdom Size 13–14.5 → us-15-5-1813–14.5 to us-15-5-18
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United Kingdom Size 15–17.5 → us-15-5-1815–17.5 to us-15-5-18
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