Milliliters to US teaspoons
1 milliliter = 0.202884 US teaspoons
Type a value in milliliters (mL) to get US teaspoons (tsp) straight away. A milliliter is smaller than a US teaspoon, so the number goes down. Both units belong to volume, measured here against the liter.
1 mL = 0.20288414 tsp
Formula
tsp = mL × 0.20288414
One milliliter is 0.20288414 US teaspoons, so multiply by that factor. You can also divide by 4.92892, the number of milliliters in one US teaspoon. Here mL is the value in milliliters and tsp is the result in US teaspoons.
Worked example: 500 milliliters × 0.20288414 = 101.442 US teaspoons.
Milliliters to US teaspoons table
| milliliters (mL) | US teaspoons (tsp) |
|---|---|
| 1 mL | 0.202884 tsp |
| 2 mL | 0.405768 tsp |
| 3 mL | 0.608652 tsp |
| 4 mL | 0.811537 tsp |
| 5 mL | 1.01442 tsp |
| 6 mL | 1.2173 tsp |
| 7 mL | 1.42019 tsp |
| 8 mL | 1.62307 tsp |
| 9 mL | 1.82596 tsp |
| 10 mL | 2.02884 tsp |
| 15 mL | 3.04326 tsp |
| 20 mL | 4.05768 tsp |
| 25 mL | 5.0721 tsp |
| 30 mL | 6.08652 tsp |
| 40 mL | 8.11537 tsp |
| 50 mL | 10.1442 tsp |
| 60 mL | 12.173 tsp |
| 75 mL | 15.2163 tsp |
| 100 mL | 20.2884 tsp |
Everyday milliliters in US teaspoons
| What it is | mL | tsp |
|---|---|---|
| a medicine teaspoon | 5 mL | 1.01442 tsp |
| a tablespoon (about) | 15 mL | 3.04326 tsp |
| a metric cup | 250 mL | 50.721 tsp |
| a soft-drink can | 330 mL | 66.9518 tsp |
| a water bottle | 500 mL | 101.442 tsp |
Quick estimate in your head
Multiply by about 0.2. For 500 mL that gives 100 tsp against an exact 101.442 tsp, an error of 1.4%.
About the units
Milliliter (mL). One thousandth of a liter, the same as one cubic centimeter. Used for drinks and medicine.
US teaspoon (tsp). A third of a tablespoon, about 4.93 mL. Metric teaspoons are 5 mL.
Going the other way, 1 US teaspoon is 4.92892 milliliters.
Questions
How many US teaspoons are in 1 milliliter?
1 milliliter is 0.202884 US teaspoons, and 1 US teaspoon is 4.92892 milliliters.
How do I convert milliliters to US teaspoons?
Use tsp = mL × 0.20288414. For example, 500 milliliters × 0.20288414 = 101.442 US teaspoons.
Are US and UK measures the same?
No. This page uses US customary units. A UK gallon is 4.546 L against 3.785 L in the US, and a UK pint is 568 mL against 473 mL.
How much is a water bottle in US teaspoons?
500 mL is 101.442 tsp.
Source for the conversion factor: NIST Handbook 44, Appendix C (units of volume).
Related conversions
- US teaspoons to milliliters
- milliliters to US fluid ounces
- milliliters to US cups
- milliliters to liters
- milliliters to cubic inches
- milliliters to US pints