Convert Teaspoon to Milliliter

One tsp equals 4.928921594 mL. This converter allows you to easily convert between Teaspoon and Milliliter in real time.

Formula

tsp × 4.928921594 = mL

Example: 1 tsp = 4.928921594 mL

What is Teaspoon?

The teaspoon is a unit of volume used in cooking, defined in the US system as exactly 4.92892159375 milliliters, or one-third of a US tablespoon. It is the standard measure for small quantities of spices, salt, baking powder, and vanilla extract. In medicine, liquid doses are sometimes prescribed as "one teaspoon." The metric teaspoon, used in many countries, is defined as exactly 5 mL, which is very close to but not identical to the US teaspoon.

What is Milliliter?

The milliliter is one-thousandth of a liter and is equivalent to one cubic centimeter. It is the standard unit for small liquid volumes in medicine, where dosages are prescribed in milliliters (for example, "take 5 mL of cough syrup"). Cosmetics and personal care products list their volumes in milliliters. In cooking, a teaspoon holds approximately 5 mL, and measuring cups are often graduated in milliliters alongside other units.