Cubic decimeters to tons (register) converter above calculates how many tons (register) are in 'X' cubic decimeters (where 'X' is the number of cubic decimeters to convert to tons (register)). In order to convert a value from cubic decimeters to tons (register) (from dm³ to RT) just type the number of dm³ to be converted to RT and then click on the 'convert' button.