US: 3XL / XXXL to Europe Size 54-60

US: 3XL / XXXL: Corresponds to a waist range of 180–230 $\text{cm}$ (71–90.5 $\text{in}$), hip range of 180–220 $\text{cm}$ (71–86.5 $\text{in}$), and fluid absorbency capacity of 3500 $\text{ml}$ (118.5 $\text{oz}$).

Europe Size 54-60: Corresponds to a waist range of 100–150 $\text{cm}$ (39.5–59 $\text{in}$), hip range of 115–145 $\text{cm}$ (45–57 $\text{in}$), and fluid absorbency capacity of 1800 $\text{ml}$ (61 $\text{oz}$).