Milliliters To Teaspoons Conversion (ml To Tsp) - Inch Calculator

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• Milliliters to Teaspoons Converter
• How to Convert Milliliters to Teaspoons
• How Many Teaspoons Are in a Milliliter?
• What Is a Milliliter?
• What Is a Teaspoon?
• Milliliter to Teaspoon Conversion Table
• References

Person Icon By Joe Sexton

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Milliliters to Teaspoons Converter. Inch Calculator. Retrieved December 14, 2025, from https://www.inchcalculator.com/convert/milliliter-to-teaspoon/

How to Convert Milliliters to Teaspoons

To convert a measurement in milliliters to a measurement in teaspoons, multiply the volume by the following conversion ratio: 0.202884 teaspoons/milliliter.

Since one milliliter is equal to 0.202884 teaspoons, you can use this simple formula to convert:

teaspoons = milliliters × 0.202884

The volume in teaspoons is equal to the volume in milliliters multiplied by 0.202884.

For example, here's how to convert 5 milliliters to teaspoons using the formula above.

teaspoons = (5 mL × 0.202884) = 1.014421 tsp

How Many Teaspoons Are in a Milliliter?

There are 0.202884 teaspoons in a milliliter, which is why we use this value in the formula above.

1 mL = 0.202884 tsp

Milliliters and teaspoons are both units used to measure volume. Keep reading to learn more about each unit of measure.

What Is a Milliliter?

The milliliter is a unit of volume equal to 1 cubic centimeter, 1/1,000 of a liter, or about 0.061 cubic inches.[1]

The milliliter is an SI unit of volume in the metric system. In the metric system, "milli" is the prefix for thousandths, or 10-3. A milliliter is sometimes also referred to as a millilitre. Milliliters can be abbreviated as mL, and are also sometimes abbreviated as ml or mℓ. For example, 1 milliliter can be written as 1 mL, 1 ml, or 1 mℓ.

Since one milliliter is equivalent to one cubic centimeter, milliliters are sometimes expressed using the abbreviation for a cubic centimeter (cc) for things such as medical dosages or engine displacements.

Learn more about milliliters.

What Is a Teaspoon?

The teaspoon is a unit of volume equal to 1/3 of a tablespoon or 1/6 of a fluid ounce.[2] One teaspoon is equal to approximately 4.929 milliliters, but in nutrition labeling, one teaspoon is equal to exactly 5 milliliters.[3]

The teaspoon is a US customary unit of volume. Teaspoons can be abbreviated as tsp, and are also sometimes abbreviated as t, ts, or tspn. For example, 1 teaspoon can be written as 1 tsp, 1 t, 1 ts, or 1 tspn.

Learn more about teaspoons.

Milliliter to Teaspoon Conversion Table

Table showing various milliliter measurements converted to teaspoons.

Milliliters	Teaspoons
1 mL	0.202884 tsp
2 mL	0.405768 tsp
3 mL	0.608652 tsp
4 mL	0.811537 tsp
5 mL	1.0144 tsp
6 mL	1.2173 tsp
7 mL	1.4202 tsp
8 mL	1.6231 tsp
9 mL	1.826 tsp
10 mL	2.0288 tsp
11 mL	2.2317 tsp
12 mL	2.4346 tsp
13 mL	2.6375 tsp
14 mL	2.8404 tsp
15 mL	3.0433 tsp
16 mL	3.2461 tsp
17 mL	3.449 tsp
18 mL	3.6519 tsp
19 mL	3.8548 tsp
20 mL	4.0577 tsp
21 mL	4.2606 tsp
22 mL	4.4635 tsp
23 mL	4.6663 tsp
24 mL	4.8692 tsp
25 mL	5.0721 tsp
26 mL	5.275 tsp
27 mL	5.4779 tsp
28 mL	5.6808 tsp
29 mL	5.8836 tsp
30 mL	6.0865 tsp
31 mL	6.2894 tsp
32 mL	6.4923 tsp
33 mL	6.6952 tsp
34 mL	6.8981 tsp
35 mL	7.1009 tsp
36 mL	7.3038 tsp
37 mL	7.5067 tsp
38 mL	7.7096 tsp
39 mL	7.9125 tsp
40 mL	8.1154 tsp

References

1. National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf
2. Florida Department of Agriculture and Consumer Services, Cooking Conversion Guide, https://www.fdacs.gov/content/download/17165/file/P-01775.pdf
3. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures, https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-guidelines-determining-metric-equivalents-household-measures

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