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