UnitSnapTeaspoons to Milliliters
1 tsp = 4.928922 mL
Teaspoons appear in recipes for salt, spices, baking soda, and vanilla, and also in medicine directions. Converting teaspoons to milliliters is useful when a dosing syringe, dropper, or metric spoon is the only accurate tool available, or when writing recipes for metric readers.
When you need to convert teaspoons to milliliters
- Measuring vanilla or other extracts with a metric spoon
- Translating medicine directions written in teaspoons to an oral syringe in mL
- Writing recipes for readers who use metric measuring spoons
- Logging small liquid amounts in a nutrition app
How to convert teaspoons to milliliters
mL = tsp × 4.928922
Example: 5 tsp = 24.64461 mL
Typical teaspoon amounts
| Teaspoons (tsp) | Milliliters (mL) |
|---|---|
| 0.25 tsp | 1.23223 mL |
| 0.5 tsp | 2.464461 mL |
| 1 tsp | 4.928922 mL |
| 1.5 tsp | 7.393382 mL |
| 2 tsp | 9.857843 mL |
| 3 tsp | 14.78676 mL |
| 4 tsp | 19.71569 mL |
| 5 tsp | 24.64461 mL |
Tips for converting teaspoons to milliliters
- One US teaspoon is about 4.93 mL, and 5 mL is a standard approximation within about 1.5%.
- Household cutlery teaspoons vary widely in size, so use a proper measuring spoon or syringe for medicine.
- Abbreviations are easy to confuse: tsp is teaspoon, tbsp or T is tablespoon, which is three times larger.
Teaspoons to Milliliters conversion table
| Teaspoons (tsp) | Milliliters (mL) |
|---|---|
| 1 tsp | 4.928922 mL |
| 2 tsp | 9.857843 mL |
| 3 tsp | 14.78676 mL |
| 4 tsp | 19.71569 mL |
| 5 tsp | 24.64461 mL |
| 6 tsp | 29.57353 mL |
| 7 tsp | 34.50245 mL |
| 8 tsp | 39.43137 mL |
| 9 tsp | 44.36029 mL |
| 10 tsp | 49.28922 mL |
| 15 tsp | 73.93382 mL |
| 20 tsp | 98.57843 mL |
| 25 tsp | 123.223 mL |
| 30 tsp | 147.8676 mL |
| 40 tsp | 197.1569 mL |
| 50 tsp | 246.4461 mL |
| 75 tsp | 369.6691 mL |
| 100 tsp | 492.8922 mL |
| 250 tsp | 1,232.23 mL |
| 500 tsp | 2,464.461 mL |
| 1,000 tsp | 4,928.922 mL |
About the units
Teaspoons: The US teaspoon equals 1/3 of a tablespoon, about 4.93 milliliters.
Milliliters: The milliliter is a metric unit of volume, equal to one cubic centimeter.
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Frequently asked questions
How many milliliters are in 1 teaspoon?
1 teaspoon equals 4.928922 milliliters.
How many teaspoons are in 1 milliliter?
1 milliliter equals 0.2028841 teaspoons.
How do I convert teaspoons to milliliters?
Use the formula mL = tsp × 4.928922.
What is 10 teaspoons in milliliters?
10 teaspoons equals 49.28922 milliliters.
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Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated