United Kingdom Size 8-10 to US: 20-22

United Kingdom Size 8-10: Corresponds to a relaxed bust range of 84–88 $\text{cm}$ (33.1–34.6 $\text{in}$), elastic waist range of 66–70 $\text{cm}$ (26–27.6 $\text{in}$), and comfort drape classification Relaxed / Comfort Drape.

US: 20-22: Corresponds to a relaxed bust range of 113–117 $\text{cm}$ (44.5–46.1 $\text{in}$), elastic waist range of 95–100 $\text{cm}$ (37.4–39.4 $\text{in}$), and comfort drape classification Loose Lounge Fit.