Compare UK Pizza Sizes Pizza Hut / Papa Johns / Dominoes / Other

Can anyone help with the pizza sizes in inches for these places ? it seems in the UK they are keen to hide this info, plenty of US links. Is Papa Johns XL same as Pizza Hut L etc It would be good to make this a link for others to reference in future.

Dominoes Sizes

Personal - 7"
Small - 9.5"
Medium - 11.5"
Large - 13.5"

Papa Johns

Small – 6 slices, 9.5 inches
Medium – 8 slices, 11.5 inches
Large – 10 slices, 13.5 inches
XXL – 12 slices, 15.5 inches

Pizza Hut

Medium: 11" (Italian) or 10.5" (Pan)
Large: 13" (Italian & Pan) or 14" (Stuffed Crust & Cheesy Bites)

Tops Pizza

Medium 10.5
Large 13.5
Super Size 15.5