United Kingdom Size Regular to US: Super Plus

United Kingdom Size Regular: Corresponds to a Syngina fluid capacity range of 6–9 $\text{g}$, FDA absorbency tier of Regular Absorbency (6 to 9g), EDANA classification Normal / Medium (6 to 9g), physical dry dimensions of 48 $\text{mm}$ length $\text{x}$ 13 $\text{mm}$ dia., recommended flow Light to Moderate Flow, and format type Digital / Standard Applicator.

US: Super Plus: Corresponds to a Syngina fluid capacity range of 12–15 $\text{g}$, FDA absorbency tier of Super Plus Absorbency (12 to 15g), EDANA classification Super Plus / Very Heavy (12 to 15g), physical dry dimensions of 52 $\text{mm}$ length $\text{x}$ 16.5 $\text{mm}$ dia., recommended flow Heavy Flow, and format type Digital / High-Capacity Applicator.