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Conversion
US Teaspoons to Milliliters Converter
1 US teaspoon = 4.928921594 mL. Enter any value to convert US teaspoons (tsp) to milliliters (mL), or use the table below for common values.
Formula
mL = tsp × 4.928921594
Example: 10 tsp = 49.28921594 mL. To convert the other way, use tsp = mL × 0.2028841362.
Quick mental estimate: multiply by about 4.9.
US Teaspoons to Milliliters conversion table
| US Teaspoons (tsp) | Milliliters (mL) |
|---|---|
| 1 tsp | 4.928921594 mL |
| 2 tsp | 9.857843188 mL |
| 3 tsp | 14.78676478 mL |
| 4 tsp | 19.71568638 mL |
| 5 tsp | 24.64460797 mL |
| 6 tsp | 29.57352956 mL |
| 7 tsp | 34.50245116 mL |
| 8 tsp | 39.43137275 mL |
| 9 tsp | 44.36029434 mL |
| 10 tsp | 49.28921594 mL |
| 15 tsp | 73.93382391 mL |
| 20 tsp | 98.57843188 mL |
| 25 tsp | 123.2230398 mL |
| 30 tsp | 147.8676478 mL |
| 40 tsp | 197.1568638 mL |
| 50 tsp | 246.4460797 mL |
| 75 tsp | 369.6691195 mL |
| 100 tsp | 492.8921594 mL |
| 250 tsp | 1,232.230398 mL |
| 500 tsp | 2,464.460797 mL |
| 1,000 tsp | 4,928.921594 mL |
About US teaspoons and milliliters
The US teaspoon is 1/3 of a US tablespoon, about 4.93 mL. Recipes often round it to 5 mL.
The milliliter is one thousandth of a liter, equal to one cubic centimeter. It is used for medicine, drinks and cooking.
Other Volume conversions
Milliliters → US TeaspoonsReverse conversionLiters → MillilitersL → mLCubic Meters → Millilitersm³ → mLUS Teaspoons → Literstsp → LUS Teaspoons → Cubic Meterstsp → m³US Teaspoons → US Tablespoonstsp → tbspUS Teaspoons → US Fluid Ouncestsp → fl ozUS Teaspoons → US Cupstsp → cupUS Teaspoons → US Pintstsp → ptUS Teaspoons → US Quartstsp → qtUS Teaspoons → US Gallonstsp → galUS Tablespoons → Milliliterstbsp → mLUS Fluid Ounces → Millilitersfl oz → mLUS Cups → Milliliterscup → mLUS Pints → Milliliterspt → mLUS Quarts → Millilitersqt → mLUS Gallons → Millilitersgal → mL
Frequently asked questions
How do I convert US teaspoons to milliliters?
Use the formula mL = tsp × 4.928921594. For example, 10 tsp = 49.28921594 mL.
What is 1 US teaspoon in milliliters?
1 tsp = 4.928921594 mL.
How do I convert milliliters back to US teaspoons?
Use tsp = mL × 0.2028841362. 1 mL = 0.2028841362 tsp.