Cups (FDA) to fluid ounces (US labeling) conversion calculator shown above calculates how many fluid ounces (US labeling) are in 'X' cups (FDA) (where 'X' is the number of cups (FDA) to convert to fluid ounces (US labeling)). In order to convert a value from cups (FDA) to fluid ounces (US labeling) just type the number of cups (FDA) to be converted to fl oz and then click on the 'convert' button.