US: Regular (Size 1/2) to Europe Size 18 cm Sanitary Pads & Menstrual Care

US: Regular (Size 1/2): Features a length of 24 $\text{cm}$ (9.4 $\text{in}$), width of 7 $\text{cm}$ (2.8 $\text{in}$), droplet absorption rating of 3 (Moderate Daytime Flow) with a fluid capacity of 10 $\text{ml}$ (0.3 $\text{fl oz}$) and wings: Yes.

Europe Size 18 cm: Features a length of 18 $\text{cm}$ (7.1 $\text{in}$), width of 5.5 $\text{cm}$ (2.2 $\text{in}$), droplet absorption rating of 2 (Light Flow / Discharge) with a fluid capacity of 5 $\text{ml}$ (0.2 $\text{fl oz}$) and wings: No.