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