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