How many milliliters are in a teaspoon?

One US teaspoon equals 4.92892 milliliters, so dividing milliliters by 4.92892 gives teaspoons.

Is this the US or metric teaspoon?

This converter uses the US teaspoon (4.92892 mL). A metric teaspoon is exactly 5 mL, very close but not identical.

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Convert mL to US teaspoons (and back) instantly.

Convert milliliters (mL) to US teaspoons (tsp) and back in one place. One US teaspoon is 4.92892 mL, so teaspoons = mL ÷ 4.92892.

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