US: 2XL (20–22) to United Kingdom Size 16–18
Cross-market women’s blouse, t-shirt, and sweater conversion mapping 2XL (20–22) specifications into 16–18.

Analyzing Women’s Upper-Body Size Equivalence Across Markets
US: 2XL (20–22): 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.
United Kingdom Size 16–18: Bust interval range of 97.8–104.1 (38.5–41 ), natural waist range of 76.2–82.6 (30–32.5 ), shoulder width of 41.3 (16.25 ), sleeve length of 80 (31.5 ), style variants Blouses, T-Shirts, Tank Tops, Sweaters & Cardigans, and fit classification Relaxed Comfort Fit.
Other Conversions to United Kingdom Size 16–18
US: XS (0–2) → uk-16-18XS (0–2) to uk-16-18
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US: S (4–6) → uk-16-18S (4–6) to uk-16-18
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US: M (8–10) → uk-16-18M (8–10) to uk-16-18
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US: L (12–14) → uk-16-18L (12–14) to uk-16-18
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US: XL (16–18) → uk-16-18XL (16–18) to uk-16-18
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US: 2XL (20–22) → uk-16-182XL (20–22) to uk-16-18
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US: 3XL (24–26) → uk-16-183XL (24–26) to uk-16-18
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