Convert Teaspoons (US) to Milliliters
One teaspoon (US) equals 4.928922 milliliters. Type any value to convert teaspoons (us) to milliliters instantly — with a full reference table below.
Convert Teaspoons (US) to Milliliters
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How to convert Teaspoons (US) to Milliliters
To convert teaspoons (us) to milliliters, multiply by 4.928922. One teaspoon (US) equals 4.928922 ml, and one milliliter equals 0.202884 tsp.
- Take the value in teaspoons (us) — for example 7.5 tsp.
- Multiply by 4.928922 (the number of milliliters in one teaspoon (US)).
- 7.5 × 4.928922 = 36.96691 ml.
Quick mental estimate: Multiply the number of teaspoons (us) by 5 (within 1.4% of the exact answer).
Teaspoons (US) to Milliliters conversion table
| Teaspoons (US) | Milliliters |
|---|---|
| 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 |
| 8 tsp | 39.43137 ml |
| 10 tsp | 49.28922 ml |
| 12 tsp | 59.14706 ml |
| 16 tsp | 78.86275 ml |
| 20 tsp | 98.57843 ml |
| 24 tsp | 118.2941 ml |
| 32 tsp | 157.7255 ml |
| 50 tsp | 246.4461 ml |
| 100 tsp | 492.8922 ml |
| Milliliters | Teaspoons (US) |
|---|---|
| 1 ml | 0.202884 tsp |
| 2 ml | 0.405768 tsp |
| 3 ml | 0.608652 tsp |
| 4 ml | 0.811537 tsp |
| 5 ml | 1.014421 tsp |
| 6 ml | 1.217305 tsp |
| 8 ml | 1.623073 tsp |
| 10 ml | 2.028841 tsp |
| 12 ml | 2.43461 tsp |
| 16 ml | 3.246146 tsp |
| 20 ml | 4.057683 tsp |
| 24 ml | 4.869219 tsp |
| 32 ml | 6.492292 tsp |
| 50 ml | 10.14421 tsp |
| 100 ml | 20.28841 tsp |
About converting Teaspoons (US) to Milliliters
Teaspoons (US) (tsp) and Milliliters (ml) are both units of volume. The exact factor is 1 tsp = 4.928922 ml, so multiply by 4.928922 to go from teaspoons (us) to milliliters (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Milliliters to Teaspoons (US) converter, or the full unit converter for every unit at once.
Real-world volume in teaspoons (us) and milliliters
| Example | Teaspoons (US) | Milliliters |
|---|---|---|
| A medicine teaspoon dose | 1.014421 tsp | 5 ml |
| A US soda can (12 fl oz) | 72 tsp | 354.8824 ml |
| A wine bottle | 152.1631 tsp | 750 ml |
| A US gallon of milk | 768 tsp | 3,785.412 ml |
| A typical car fuel tank | ≈ 10,144.21 tsp | ≈ 50,000 ml |
| A typical bathtub | ≈ 30,432.62 tsp | ≈ 150,000 ml |
“≈” marks typical values; the rest are defined or measured figures.
The units
A third of a tablespoon, 4.92892159375 mL — medicine spoons round this to 5 mL.
Used for: Recipes and medicine doses.
One thousandth of a litre — the same as one cubic centimetre.
Used for: Drinks, medicine and cosmetics.
US customary volumes are exact by definition: the US gallon is 231 cubic inches, which is exactly 3.785411784 litres.