Teaspoons to Liters Converter
Enter the volume in teaspoons below to convert it to liters.
Convert Teaspoons (US) to Liters
Enter a value in teaspoons (us) (tsp) to convert to liters (L).
Teaspoon to Liter Conversion Table
Table showing various teaspoon measurements converted to liters. Click any preset value or arrow to load it into the converter.
| Teaspoons (US) (tsp) | Liters (L) |
|---|---|
| 1 tsp | 0.0049289 L |
| 2 tsp | 0.0098578 L |
| 2.5 tsp | 0.0123223 L |
| 5 tsp | 0.0246446 L |
| 10 tsp | 0.0492892 L |
| 15 tsp | 0.0739338 L |
| 20 tsp | 0.0985784 L |
| 25 tsp | 0.123223 L |
| 30 tsp | 0.1478676 L |
| 50 tsp | 0.2464461 L |
How to Convert Teaspoons to Liters
To convert teaspoons to liters, multiply the volume by the following conversion ratio: 0.0049289 liters/teaspoon.
Since one teaspoon is equal to 0.0049289 liters, you can use this simple formula to convert:
The volume in liters is equal to the volume in teaspoons multiplied by 0.0049289.
For example, here's how to convert 5 teaspoons to liters using the formula above.
How Many Liters Are in a Teaspoon?
There are 0.0049289 liters in a teaspoon, which is why we use this value in the formula above.
Our teaspoon to liter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Teaspoons and liters are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Teaspoon?
A teaspoon is a unit of volume equal to 0.0049289 liters (L), the base unit for volume. 1/3 of a US tablespoon (4.9289 mL). [1]
The teaspoon is classified as a US customary unit of volume. Teaspoons can be abbreviated as tsp; for example, 1 teaspoon can be written as 1 tsp.
When working with teaspoons (tsp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, teaspoons (tsp) are widely used across fine-tolerance laboratory, analytical, and micro-scale volume measurements within US customary workflows, engineering documentation, and technical data sheets.
What Is a Liter?
Metric unit of volume equal to 1 cubic decimeter (1,000 mL). It serves as a primary reference unit for measuring volume across scientific and practical applications. [2]
The liter is classified as a metric and SI-compatible unit of volume. Liters can be abbreviated as L; for example, 1 liter can be written as 1 L.
As the primary coherent reference unit for volume in this category, all other volume units are mathematically anchored to the liter (L).
In practice, liters (L) are widely used across standard volume applications within SI metric workflows, engineering documentation, and technical data sheets.
When converting volume between teaspoons (tsp) and liters (L), keep full floating-point precision (1 tsp = 0.0049289 L; 1 L = 202.8841362 tsp) during intermediate calculations and round only the final liter figure to match your instrument tolerance.
More Teaspoon & Liter Conversions
Need to calculate in the opposite direction? Use our liters to teaspoons (us) calculator to switch your starting unit immediately. You can also explore related tools such as converting liters to teaspoons (us), converting gallons (us) to liters, or converting cups (us) to liters.
Convert from Teaspoons
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Teaspoons (US) (tsp) to Liters (L)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Teaspoon (US) (tsp) & Liter (L)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (tsp to L)