Pecks (US dry) to cubic decimeters conversion calculator above calculates how many cubic decimeters are in 'X' pecks (US dry) (where 'X' is the number of pecks (US dry) to convert to cubic decimeters). In order to convert a value from pecks (US dry) to cubic decimeters (from pk to dm³) simply type the number of pk to be converted to dm³ and then click on the 'convert' button.