United Kingdom Size 12 to US: 2 S

United Kingdom Size 12: Features a height of 172 $\text{cm}$ (67.7 $\text{in}$), bust contour of 94 $\text{cm}$ (37 $\text{in}$), waist shaping of 75 $\text{cm}$ (29.5 $\text{in}$), hip flare of 100 $\text{cm}$ (39.4 $\text{in}$), and silhouette cut: Natural Waist / Evening Gown.

US: 2 S: Features a height of 168 $\text{cm}$ (66.1 $\text{in}$), bust contour of 86 $\text{cm}$ (33.9 $\text{in}$), waist shaping of 67 $\text{cm}$ (26.4 $\text{in}$), hip flare of 92 $\text{cm}$ (36.2 $\text{in}$), and silhouette cut: Natural Waist / Frock.