Milliliters to Teaspoons
Convert milliliters to teaspoons instantly — one milliliter is 0.202884 teaspoons.
| Milliliters | Teaspoons |
|---|---|
| 1 mL | 0.202884 tsp |
| 2 mL | 0.405768 tsp |
| 3 mL | 0.608652 tsp |
| 5 mL | 1.014421 tsp |
| 10 mL | 2.028841 tsp |
| 25 mL | 5.072103 tsp |
| 50 mL | 10.144207 tsp |
| 100 mL | 20.288414 tsp |
How to use
- Enter a value in the Milliliters field.
- The Teaspoons figure appears immediately — no button to press.
- Typing in the Teaspoons field converts back to Milliliters the same way.
- Use the reference table for the values that come up most often.
Milliliters to Teaspoons formula
The factor from milliliters to teaspoons is 0.202884136.
tsp = mL × 0.202884136
Why this factor: the milliliter and the teaspoon are both defined against the liter, so dividing one definition by the other gives 0.202884136 directly. Both definitions are set out in full below.
To go the other way, divide by 0.202884136 — or use the Teaspoons to Milliliters converter, which is the same calculation reversed.
Worked example
Take 50 mL and multiply by the factor 0.202884136: the result is 10.144207 tsp.
50 mL × 0.202884136 = 10.144207 tsp
The converter above does this for any value you type, in either direction.
What is a milliliter?
A milliliter is one thousandth of a liter, and is exactly the same volume as a cubic centimeter.
Definition: Exactly 0.001 liter, which is exactly 1 cm³.
Where it is used: Medicine doses, cosmetics, recipe quantities, and laboratory work.
Worth knowing: 1 mL = 1 cm³ = 1 cc exactly, so these three units are interchangeable.
What is a teaspoon?
A US teaspoon is the smallest common cooking measure, one third of a tablespoon.
Definition: Exactly one sixth of a US fluid ounce, so about 4.9289 milliliters — conventionally rounded to 5 mL.
Where it is used: Recipes, spice and leavening quantities, and liquid medicine doses.
Milliliters vs Teaspoons
The milliliter is a metric unit while the teaspoon is a US customary unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many teaspoons are in a milliliter?
One milliliter equals 0.202884136 teaspoons.
What is the formula to convert milliliters to teaspoons?
Multiply the number of milliliters by 0.202884136. To reverse it, divide by 0.202884136 instead.
How do I convert teaspoons back to milliliters?
Divide by 0.202884136, which is the same as multiplying by 4.92892159.
How many teaspoons are in 10 milliliters?
10 mL works out to 2.028841 tsp.
Is there anything to watch out for with milliliters?
1 mL = 1 cm³ = 1 cc exactly, so these three units are interchangeable.
How is the milliliter defined?
Exactly 0.001 liter, which is exactly 1 cm³.