US: S (4–6) to United Kingdom Size 24–26
Cross-market women’s blouse, t-shirt, and sweater conversion mapping S (4–6) specifications into 24–26.

Analyzing Women’s Upper-Body Size Equivalence Across Markets
US: S (4–6): Bust interval range of 86.4–90.2 (34–35.5 ), natural waist range of 64.8–68.6 (25.5–27 ), shoulder width of 38.1 (15 ), sleeve length of 77.5 (30.5 ), style variants Blouses, T-Shirts, Tank Tops & Sweaters, and fit classification Slim Tailored Fit.
United Kingdom Size 24–26: Bust interval range of 113–119.4 (44.5–47 ), natural waist range of 91.4–97.8 (36–38.5 ), shoulder width of 45.1 (17.75 ), sleeve length of 82.6 (32.5 ), style variants Plus Blouses, Extended T-Shirts, Sweaters & Knitwear, and fit classification Extended Plus Fit.
Other Conversions to United Kingdom Size 24–26
US: XS (0–2) → uk-24-26XS (0–2) to uk-24-26
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US: S (4–6) → uk-24-26S (4–6) to uk-24-26
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US: M (8–10) → uk-24-26M (8–10) to uk-24-26
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US: L (12–14) → uk-24-26L (12–14) to uk-24-26
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US: XL (16–18) → uk-24-26XL (16–18) to uk-24-26
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US: 2XL (20–22) → uk-24-262XL (20–22) to uk-24-26
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US: 3XL (24–26) → uk-24-263XL (24–26) to uk-24-26
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