Teaspoons (FDA) to microliters converter above calculates how many microliters are in 'X' teaspoons (FDA) (where 'X' is the number of teaspoons (FDA) to convert to microliters). In order to convert a value from teaspoons (FDA) to microliters (from tsp to μL) just type the number of tsp to be converted to μL and then click on the 'convert' button.