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United Kingdom Size 38–40 to US: S (35–37)

Cross-market men’s shirt and upper-body conversion mapping 38–40 specifications into S (35–37).

From Standard & Size
UK
Converted Equivalent
US
M (38–40)
Based on row equivalence: US M (38–40) | EU 48–50
Standard cross-walk matching active anthropometric row parameters.
United Kingdom Size 38–40 to US: S (35–37) Conversion

Analyzing Upper-Body Size Equivalence Across Markets

United Kingdom Size 38–40: Corresponds to a chest width of 96.5–101.6 cm\text{cm} (38–40 in\text{in}), neck collar girth of 39.4 cm\text{cm} (15.5 in\text{in}), sleeve length of 86.4 cm\text{cm} (34 in\text{in}), and fit style Classic Regular Fit.

US: S (35–37): Corresponds to a chest width of 88.9–94 cm\text{cm} (35–37 in\text{in}), neck collar girth of 36.8 cm\text{cm} (14.5 in\text{in}), sleeve length of 83.8 cm\text{cm} (33 in\text{in}), and fit style Athletic Slim Fit.

Other Conversions to US: S (35–37)

United Kingdom Size 32–34 → us-s-35-3732–34 to us-s-35-37
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United Kingdom Size 35–37 → us-s-35-3735–37 to us-s-35-37
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United Kingdom Size 38–40 → us-s-35-3738–40 to us-s-35-37
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United Kingdom Size 42–44 → us-s-35-3742–44 to us-s-35-37
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United Kingdom Size 46–48 → us-s-35-3746–48 to us-s-35-37
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United Kingdom Size 50–52 → us-s-35-3750–52 to us-s-35-37
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United Kingdom Size 54–56 → us-s-35-3754–56 to us-s-35-37
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