Cubic decimeters to acre-inches conversion calculator above calculates how many acre-inches are in 'X' cubic decimeters (where 'X' is the number of cubic decimeters to convert to acre-inches). In order to convert a value from cubic decimeters to acre-inches (from dm³ to ac in) simply type the number of dm³ to be converted to ac in and then click on the 'convert' button.