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