US teaspoons to milliliters
Type a value in US teaspoons to see it in milliliters straight away, or type in the second box to convert back.
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How to use it
- Type the value in the US teaspoons box.
- Read the result in milliliters as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
mL = tsp (US) × 4.928921594
Multiply the value in US teaspoons by 4.928921594 to get milliliters.
Example
To convert 25 tsp (US) to milliliters: 25 × 4.928921594 = 123.223 mL.
Conversion table
| US teaspoons (tsp (US)) | Milliliters (mL) |
|---|---|
| 1 | 4.92892 |
| 2 | 9.85784 |
| 3 | 14.7868 |
| 5 | 24.6446 |
| 10 | 49.2892 |
| 20 | 98.5784 |
| 25 | 123.223 |
| 50 | 246.446 |
| 100 | 492.892 |
| 250 | 1,232.23 |
| 500 | 2,464.46 |
| 1,000 | 4,928.92 |
About the units
- US teaspoon
- The US teaspoon is one third of a US tablespoon, exactly 4.92892159375 milliliters.
- Milliliter
- The milliliter is one thousandth of a liter and equals exactly one cubic centimeter.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many milliliters are in one US teaspoon?
1 tsp (US) = 4.92892 mL exactly.
How do I convert US teaspoons to milliliters?
Use mL = tsp (US) × 4.928921594. For example, 25 tsp (US) = 123.223 mL.
How many US teaspoons are in one milliliter?
1 mL = 0.202884 tsp (US).
What is the difference between a US gallon and an imperial gallon?
A US gallon is 3.785411784 liters and the imperial gallon used in the UK is 4.54609 liters, about 20% larger. Check where a figure comes from before converting, since US sources mean the US gallon.
How many milliliters are in a cup?
The US customary cup used in recipes is 236.5882365 mL and the metric cup is 250 mL. US nutrition labels round the cup to 240 mL, so the figure differs slightly between sources.