Tablespoons (metric) to cubic nanometers conversion calculator shown above calculates how many cubic nanometers are in 'X' tablespoons (metric) (where 'X' is the number of tablespoons (metric) to convert to cubic nanometers). In order to convert a value from tablespoons (metric) to cubic nanometers just type the number of tablespoons (metric) to be converted to nm³ and then click on the 'convert' button.