How to convert milliliters to US teaspoons
tsp = mL × 0.2028841362Multiply the value in milliliters by 0.2028841362. To go the other way, multiply by 4.928921594 (or divide by 0.2028841362).
A milliliter is smaller than an US teaspoon: it takes 4.928921594 milliliters to make one US teaspoon.
Worked examples
- 1 milliliter1 mL × 0.2028841362 = 0.2028841362 tsp
- 5 milliliters5 mL × 0.2028841362 = 1.014420681 tsp
- 10 milliliters10 mL × 0.2028841362 = 2.028841362 tsp
- 20 milliliters20 mL × 0.2028841362 = 4.057682724 tsp
- 100 milliliters100 mL × 0.2028841362 = 20.28841362 tsp
Milliliters to US teaspoons conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Milliliters (mL) | US teaspoons (tsp) |
|---|---|
| 0.1 mL | 0.020288414 tsp |
| 0.25 mL | 0.050721034 tsp |
| 0.5 mL | 0.10144207 tsp |
| 1 mL | 0.20288414 tsp |
| 2 mL | 0.40576827 tsp |
| 3 mL | 0.60865241 tsp |
| 4 mL | 0.81153654 tsp |
| 5 mL | 1.0144207 tsp |
| 6 mL | 1.2173048 tsp |
| 7 mL | 1.420189 tsp |
| 8 mL | 1.6230731 tsp |
| 9 mL | 1.8259572 tsp |
| 10 mL | 2.0288414 tsp |
| Milliliters (mL) | US teaspoons (tsp) |
|---|---|
| 12 mL | 2.4346096 tsp |
| 15 mL | 3.043262 tsp |
| 20 mL | 4.0576827 tsp |
| 25 mL | 5.0721034 tsp |
| 30 mL | 6.0865241 tsp |
| 40 mL | 8.1153654 tsp |
| 50 mL | 10.144207 tsp |
| 75 mL | 15.21631 tsp |
| 100 mL | 20.288414 tsp |
| 250 mL | 50.721034 tsp |
| 500 mL | 101.44207 tsp |
| 1,000 mL | 202.88414 tsp |
About the units
Milliliter (mL)
One thousandth of a litre, identical to one cubic centimetre. Medicine doses and small bottles use mL. One milliliter equals 0.000001 cubic meters (m³).
US teaspoon (tsp)
One third of a US tablespoon: about 4.93 mL. Medicine spoons are usually a rounded 5 mL. One US teaspoon equals 0.000004928921594 cubic meters (m³).
Frequently asked questions
How many US teaspoons are in one milliliter?
There are 0.2028841362 US teaspoons in one milliliter, and this value is exact by definition.
How do I convert milliliters to US teaspoons?
Multiply the number of milliliters by 0.2028841362. For example, 10 mL × 0.2028841362 = 2.028841362 tsp.
How many milliliters are in one US teaspoon?
One US teaspoon equals 4.928921594 milliliters. That is the reverse factor, 1 ÷ 0.2028841362.
What is 10 milliliters in US teaspoons?
10 mL = 2.028841362 tsp.
Is this mL to tsp converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.