Tsp To Tbsp Converter. 1 us teaspoon (tsp) = 0.02083333333 us cup (c) = 4.92892159 milliliters (ml) = 1/3 us tablespoons (tbsp) = 1/6 us fluid ounce (fl. The teaspoon was originally used as a unit of apothecaries' measure and was equal to 1 fluid dram, ¼ of a tablespoon, or 1/8 of a fluid ounce.

Use this page to learn how to convert between teaspoons and tablespoons. 2 tbsp = (2 * 3) = 6 teaspoons. To convert teaspoons to tablespoons, divide the teaspoon value by 3.