Teaspoons to Liters
Convert teaspoons to liters instantly — one teaspoon is 0.00492892 liters.
| Teaspoons | Liters |
|---|---|
| 1 tsp | 0.004929 L |
| 2 tsp | 0.009858 L |
| 3 tsp | 0.014787 L |
| 5 tsp | 0.024645 L |
| 10 tsp | 0.049289 L |
| 25 tsp | 0.123223 L |
| 50 tsp | 0.246446 L |
| 100 tsp | 0.492892 L |
How to use
- Enter a value in the Teaspoons field.
- The Liters figure appears immediately — no button to press.
- Typing in the Liters field converts back to Teaspoons the same way.
- Use the reference table for the values that come up most often.
Teaspoons to Liters formula
The factor from teaspoons to liters is 0.00492892159.
L = tsp × 0.00492892159
Why this factor: the teaspoon and the liter are both defined against the liter, so dividing one definition by the other gives 0.00492892159 directly. Both definitions are set out in full below.
To go the other way, divide by 0.00492892159 — or use the Liters to Teaspoons converter, which is the same calculation reversed.
Worked example
Take 2 tsp and multiply by the factor 0.00492892159: the result is 0.009858 L.
2 tsp × 0.00492892159 = 0.009858 L
The converter above does this for any value you type, in either direction.
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.
What is a liter?
A liter is the everyday metric unit of volume, equal to the space in a 10 cm cube.
Definition: Exactly one cubic decimeter, so exactly 0.001 cubic meter. Accepted for use with SI but not an SI unit itself.
Where it is used: Fuel, beverages, engine displacement, and recipe volumes across the metric world.
Teaspoons vs Liters
The teaspoon is a US customary unit while the liter is a metric 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 liters are in a teaspoon?
One teaspoon equals 0.00492892159 liters.
What is the formula to convert teaspoons to liters?
Multiply the number of teaspoons by 0.00492892159. To reverse it, divide by 0.00492892159 instead.
How do I convert liters back to teaspoons?
Divide by 0.00492892159, which is the same as multiplying by 202.884136.
How many liters are in 10 teaspoons?
10 tsp works out to 0.049289 L.
How is the teaspoon defined?
Exactly one sixth of a US fluid ounce, so about 4.9289 milliliters — conventionally rounded to 5 mL.