Pecks (UK) to cups (UK) conversion calculator shown above calculates how many cups (UK) are in 'X' pecks (UK) (where 'X' is the number of pecks (UK) to convert to cups (UK)). In order to convert a value from pecks (UK) to cups (UK) just type the number of pk to be converted to cups (UK) and then click on the 'convert' button.