Teaspoons to milliliters (tsp to mL) conversion factors are listed below. To find out how many milliliters in teaspoons, multiply by the conversion factor or use the converter.
1 Teaspoon [US] = 4.928 mL
1 Teaspoon [Metric, Australia] = 5 mL
Teaspoon is a volume unit that is mostly used in cooking recipes and prescriptions. 1 US tsp is about 5 milliliters and 1/6 of fluid ounces. The abbreviations are "tsp", "ts".
Milliliter is a volume unit in metric system. The abbreviation is "mL".