Click one of the common conversions below or use our calculator to convert mL to tsp. Exact results on this page use US teaspoons, and we also show the common metric teaspoon equivalent where helpful.
Most Common mL to tsp Conversions
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Specific mL to tsp Conversions
10 mL to tsp
10 mL to tsp is about 2.03 US teaspoons. In metric kitchen measurements, 10 mL equals exactly 2 metric teaspoons.
This is a common search for syrups, extracts, and small liquid recipe additions.
5 mL to tsp
5 mL to tsp is about 1.01 US teaspoons. In everyday cooking and on most measuring spoon sets, 5 mL is usually treated as 1 teaspoon.
This is the most familiar teaspoon conversion because a metric teaspoon is defined as 5 mL.
15 mL to tsp
15 mL to tsp is about 3.04 US teaspoons. In metric kitchen terms, 15 mL is exactly 3 teaspoons and is also very close to 1 tablespoon.
This conversion matters because many recipes use 3 teaspoons as another way to say 1 tablespoon.
20 mL to tsp
20 mL to tsp is about 4.06 US teaspoons. Rounded for metric cooking, 20 mL is 4 teaspoons.
This amount comes up in scaled recipes and liquid ingredient adjustments.
7.5 mL to tsp
7.5 mL to tsp is about 1.52 US teaspoons. In metric kitchen measurements, 7.5 mL equals 1.5 teaspoons.
This is a common amount for flavorings, medicine measurements, and small-batch sauces.
2.5 mL to tsp
2.5 mL to tsp is about 0.51 US teaspoons. In metric kitchen use, 2.5 mL is 1/2 teaspoon.
This is especially helpful for spice blends, extracts, and small medicine doses.
1 mL to tsp
1 mL to tsp is about 0.20 US teaspoons. In simple kitchen rounding, that is about 0.2 teaspoon, or one-fifth of a teaspoon.
Tiny liquid amounts are easier to measure accurately with a syringe or dropper than with a spoon.
30 mL to tsp
30 mL to tsp is about 6.09 US teaspoons. In metric kitchen measurements, 30 mL equals 6 teaspoons.
This amount is useful because 30 mL is a common small-liquid benchmark in recipes and measuring cups.
2 mL to tsp
2 mL to tsp is about 0.41 US teaspoons. Rounded in metric kitchen terms, 2 mL is about 0.4 teaspoon.
This small conversion often comes up when adjusting concentrated flavors or liquid medications.
12.5 mL to tsp
12.5 mL to tsp is about 2.54 US teaspoons. In metric kitchen measurements, 12.5 mL equals 2.5 teaspoons.
This is a practical conversion for half-steps between 10 mL and 15 mL in cooking and liquid measuring.
How mL to tsp Conversion Works
To convert mL to tsp using US teaspoons, divide the number of milliliters by 4.92892:
tsp = mL ÷ 4.92892
To convert teaspoons back to milliliters, multiply by the same factor:
mL = tsp à 4.92892
Many recipe charts round 1 teaspoon to 5 mL for simplicity. That is why 5 mL to tsp is often shown as 1 teaspoon, even though the exact US teaspoon result is about 1.01 tsp.
Common mL to tsp Conversion Table
| Milliliters | Approximate US Teaspoons | Metric Teaspoons | Approximate US Tablespoons |
|---|---|---|---|
| 1 mL | 0.20 tsp | 0.2 tsp | 0.07 tbsp |
| 2 mL | 0.41 tsp | 0.4 tsp | 0.14 tbsp |
| 2.5 mL | 0.51 tsp | 0.5 tsp | 0.17 tbsp |
| 5 mL | 1.01 tsp | 1 tsp | 0.34 tbsp |
| 7.5 mL | 1.52 tsp | 1.5 tsp | 0.51 tbsp |
| 10 mL | 2.03 tsp | 2 tsp | 0.68 tbsp |
| 12.5 mL | 2.54 tsp | 2.5 tsp | 0.85 tbsp |
| 15 mL | 3.04 tsp | 3 tsp | 1.01 tbsp |
| 20 mL | 4.06 tsp | 4 tsp | 1.35 tbsp |
| 30 mL | 6.09 tsp | 6 tsp | 2.03 tbsp |
US Teaspoons vs Metric Teaspoons
The abbreviation tsp means teaspoon, but not every teaspoon standard is exactly the same. A US teaspoon is about 4.92892 mL, while a metric teaspoon is 5 mL exactly.
In everyday cooking, the difference is usually small enough that many people round 1 tsp = 5 mL. In more exact baking, medicine dosing, or nutrition-related measurements, it helps to know whether the conversion is based on US or metric teaspoons.
Why mL to tsp Conversions Matter in the Kitchen
Milliliters are a metric unit of volume, while teaspoons are a common kitchen volume unit. Recipes, medicine labels, syrups, extracts, and nutrition guides often switch between these two systems. That is why searches like 10 mL to tsp, 5 mL to tsp, and 15 mL to tsp are so common.
For quick cooking, rounding is often fine. For precise measuring, especially with small liquids, even a small difference can matter. Using the right mL to tsp conversion helps you measure more confidently and avoid overpouring or undermeasuring.
Better Kitchen Measurement Tips
- For exact US conversions, use 1 tsp = 4.92892 mL.
- For quick kitchen use, many measuring spoon sets treat 1 tsp = 5 mL.
- When measuring tiny liquid amounts, use a syringe, dropper, or marked medicine cup for better accuracy.
- Remember that 3 teaspoons = 1 tablespoon, which helps with 15 mL and 30 mL conversions.
- If a recipe is from another country, check whether it is using metric or US spoon measurements.
- For baking and medicine, avoid guessing small fractions of a teaspoon when a milliliter measure is available.
Use this page whenever you need a quick and accurate mL to tsp conversion. It gives you both exact US teaspoon results and the common rounded metric teaspoon equivalents for everyday kitchen use.