US: 12 to Europe Size 110

US: 12: Corresponds to a height baseline of 152 $\text{cm}$ (59.8 $\text{in}$), chest/bust baseline of 76 $\text{cm}$ (29.9 $\text{in}$), and waist baseline of 65 $\text{cm}$ (25.6 $\text{in}$).

Europe Size 110: Corresponds to a height baseline of 110 $\text{cm}$ (43.3 $\text{in}$), chest/bust baseline of 57 $\text{cm}$ (22.4 $\text{in}$), and waist baseline of 53 $\text{cm}$ (20.9 $\text{in}$).