Teaspoons (US) to teaspoons (metric) converter on this page calculates how many teaspoons (metric) are in 'X' teaspoons (US) (where 'X' is the number of teaspoons (US) to convert to teaspoons (metric)). In order to convert a value from teaspoons (US) to teaspoons (metric) (from tsp to tsp) type the number of tsp to be converted to tsp and then click on the 'convert' button.