Pecks (UK) to barrels (US fluid) converter above calculates how many barrels (US fluid) are in 'X' pecks (UK) (where 'X' is the number of pecks (UK) to convert to barrels (US fluid)). In order to convert a value from pecks (UK) to barrels (US fluid) (from pk to fl bl) simply type the number of pk to be converted to fl bl and then click on the 'convert' button.