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