Europe Size 54-20-145 to US: XL

Europe Size 54-20-145: Corresponds to a lens width baseline of 54 $\text{mm}$ (2.13 $\text{in}$), bridge width of 20 $\text{mm}$, temple arm length of 145 $\text{mm}$, and fit classification Wide / Large Frame.

US: XL: Corresponds to a lens width baseline of 56 $\text{mm}$ (2.2 $\text{in}$), bridge width of 21 $\text{mm}$, temple arm length of 150 $\text{mm}$, and fit classification Extra Wide / Oversized Frame.