Tons (freight) to cubic decameters conversion calculator above calculates how many cubic decameters are in 'X' tons (freight) (where 'X' is the number of tons (freight) to convert to cubic decameters). In order to convert a value from tons (freight) to cubic decameters (from FT to dam³) just type the number of FT to be converted to dam³ and then click on the 'convert' button.