US: 4-6 to Europe Size 30 Women’s Rompers & Jumpsuits

US: 4-6: Features a torso length of 73.5 $\text{cm}$ (28.9 $\text{in}$), shoulder-to-crotch drop of 76 $\text{cm}$ (29.9 $\text{in}$), bust of 86 $\text{cm}$ (33.9 $\text{in}$), waist of 66 $\text{cm}$ (26 $\text{in}$), and hip of 92 $\text{cm}$ (36.2 $\text{in}$).

Europe Size 30: Features a torso length of 68.5 $\text{cm}$ (27 $\text{in}$), shoulder-to-crotch drop of 71 $\text{cm}$ (28 $\text{in}$), bust of 78 $\text{cm}$ (30.7 $\text{in}$), waist of 58 $\text{cm}$ (22.8 $\text{in}$), and hip of 84 $\text{cm}$ (33.1 $\text{in}$).