US: 6 M to United Kingdom Size 4

US: 6 M: 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.

United Kingdom Size 4: Features a height of 160 $\text{cm}$ (63 $\text{in}$), bust contour of 78 $\text{cm}$ (30.7 $\text{in}$), waist shaping of 60 $\text{cm}$ (23.6 $\text{in}$), hip flare of 84 $\text{cm}$ (33.1 $\text{in}$), and silhouette cut: Petite / Fitted Bodycon.