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