Fluid ounces (US) to gills (UK) converter on this page calculates how many gills (UK) are in 'X' fluid ounces (US) (where 'X' is the number of fluid ounces (US) to convert to gills (UK)). In order to convert a value from fluid ounces (US) to gills (UK) just type the number of fl oz to be converted to gills (UK) and then click on the 'convert' button.