US: 54-56 to United Kingdom Size 32

US: 54-56: Corresponds to a relaxed chest range of 130–134 $\text{cm}$ (51.2–52.8 $\text{in}$), elastic waist range of 116–122 $\text{cm}$ (45.7–48 $\text{in}$), and fit classification Loose Lounge Fit.

United Kingdom Size 32: Corresponds to a relaxed chest range of 82–86 $\text{cm}$ (32.3–33.9 $\text{in}$), elastic waist range of 68–72 $\text{cm}$ (26.8–28.3 $\text{in}$), and fit classification Relaxed / Comfort Fit.