United Kingdom Size 46-48 to US: 42-44

United Kingdom Size 46-48: Corresponds to a relaxed chest range of 114–118 $\text{cm}$ (44.9–46.5 $\text{in}$), elastic waist range of 100–106 $\text{cm}$ (39.4–41.7 $\text{in}$), and fit classification Loose Lounge Fit.

US: 42-44: Corresponds to a relaxed chest range of 106–110 $\text{cm}$ (41.7–43.3 $\text{in}$), elastic waist range of 92–98 $\text{cm}$ (36.2–38.6 $\text{in}$), and fit classification Relaxed / Comfort Fit.