US: 30 to Europe Size 48

US: 30: Features a waist girth of 76 $\text{cm}$ (29.9 $\text{in}$), inseam length of 78 $\text{cm}$ (30.7 $\text{in}$), rise depth of 25 $\text{cm}$, and hip allowance of 94 $\text{cm}$.

Europe Size 48: Features a waist girth of 81 $\text{cm}$ (31.9 $\text{in}$), inseam length of 80 $\text{cm}$ (31.5 $\text{in}$), rise depth of 26 $\text{cm}$, and hip allowance of 100 $\text{cm}$.