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