The milliliter is one-thousandth of a liter, a standard metric unit of volume.
Milliliter to Teaspoon
Convert Milliliter to Teaspoon instantly. Free online cooking unit converter with exact formula, conversion table and FAQ.
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Convert cooking volume and mass units used in recipes and nutrition workflows.
Context values
Some unit families need one extra value for a physically accurate result.
A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
tsp = mL × 0.2028841362
Results update instantly for Milliliter to Teaspoon conversions.
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Formula
tsp = mL × 0.2028841362
mL = tsp × 4.928921594
Conversion table
| 1 mL | 0.202884 tsp |
| 5 mL | 1.014421 tsp |
| 10 mL | 2.028841 tsp |
| 20 mL | 4.057683 tsp |
| 50 mL | 10.144207 tsp |
| 100 mL | 20.288414 tsp |
| 500 mL | 101.442068 tsp |
| 1000 mL | 202.884136 tsp |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the milliliter (mL). The milliliter is one-thousandth of a liter, a standard metric unit of volume.
What is the destination unit in this conversion?
The destination unit is the teaspoon (tsp). A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
How do I convert milliliter to teaspoon?
Multiply the milliliter value by 0.2028841362. For example, 10 mL × 0.2028841362 = 2.028841 tsp.
Is the milliliter to teaspoon conversion exact?
Yes. This conversion uses a fixed factor defined for cooking measurement standards, so results are consistent every time.
Where is this conversion commonly used?
It's used when following recipes, adjusting ingredient quantities, or converting between US customary and metric cooking measurements.
Can I convert teaspoon back to milliliter?
Yes. Multiply the teaspoon value by 4.928921594 to get milliliter.
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About this conversion
This page converts milliliter (mL) to teaspoon (tsp) within the cooking converter.
The milliliter is one-thousandth of a liter, a standard metric unit of volume. A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
The formula is tsp = mL × 0.2028841362, based on each unit's fixed relationship to the cooking converter's reference units.
Results are consistent because the conversion relies on a fixed numerical ratio rather than an estimate.
Use the calculator above for instant results, or the table below for common milliliter values already converted to teaspoon.