18 Milliliters to Teaspoons

18 mL ≈ 3.6519 tsp

Calculation: tsp = 18 mL × 0.202884 ≈ 3.6519 tsp

Milliliter to Teaspoon Converter

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How much is 18 mL?

18 mL (0.61 fl oz) is about one US fluid ounce (29.6 mL), about two tablespoons.

What does 18 mL look like?

Illustration of a small measuring cup
18 mL (0.61 fl oz) is about one US fluid ounce (29.6 mL), about two tablespoons.

18 mL on the Teaspoon scale

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18 mL = 3.652 tsp

How to Convert Milliliter to Teaspoon

1 milliliter = 0.202884 Teaspoons

Teaspoon = Milliliter × 0.202884

Example: 18 mL × 0.202884 = 3.6519 tsp

Reverse Conversion

To convert Teaspoons back to milliliters:

  • Remember, 1 Teaspoon equals 4.92892 milliliters.
  • To convert 3.6519 tsp to mL, multiply 3.6519 x 4.92892, resulting in 18 mL.

18 mL is also equal to:

  • 0.018 liter
  • 0.076082 cup
  • 0.038041 pint
  • 0.01902 quart
  • 0.60865 ounce

Frequently Asked Questions

How much is 18 milliliters in Teaspoons?

18 milliliters equals 3.6519 Teaspoons. This is calculated by multiplying 18 by the conversion factor 0.202884.

What does 18 milliliters look like in Teaspoons?

18 milliliters (3.6519 Teaspoons) is a fluid ounce or a shot glass.

How do you calculate 18 milliliters to Teaspoons?

Multiply 18 by the conversion factor 0.202884. The calculation is 18 × 0.202884 = 3.6519 Teaspoons. This factor is defined by international measurement standards.

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18 milliliters = 3.65191 Teaspoons
18 milliliters = 3.65191 Teaspoons — conversion chart

Nearby Conversions

8 milliliters1.623 Teaspoons 9 milliliters1.826 Teaspoons 10 milliliters2.029 Teaspoons 11 milliliters2.232 Teaspoons 12 milliliters2.435 Teaspoons 13 milliliters2.637 Teaspoons 14 milliliters2.84 Teaspoons 15 milliliters3.043 Teaspoons 16 milliliters3.246 Teaspoons 17 milliliters3.449 Teaspoons 19 milliliters3.855 Teaspoons 20 milliliters4.058 Teaspoons 21 milliliters4.261 Teaspoons 22 milliliters4.463 Teaspoons 23 milliliters4.666 Teaspoons 24 milliliters4.869 Teaspoons 25 milliliters5.072 Teaspoons 26 milliliters5.275 Teaspoons 27 milliliters5.478 Teaspoons 28 milliliters5.681 Teaspoons

For general conversions between milliliters and Teaspoons, see the milliliters to Teaspoons converter.

Conversion factors verified against NIST, BIPM, ISO 80000-3 1 US gallon = 3.785411784 L (exact, US customary). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.