Cubic meters to teaspoons (metric) conversion calculator shown above calculates how many teaspoons (metric) are in 'X' cubic meters (where 'X' is the number of cubic meters to convert to teaspoons (metric)). In order to convert a value from cubic meters to teaspoons (metric) (from m³ to tsp) type the number of m³ to be converted to tsp and then click on the 'convert' button.