A US teaspoon is one third of a US tablespoon.
Teaspoons to Decaliters Converter — tsp to daL
Convert Teaspoon (tsp) to Decaliter (daL) using the exact conversion factor (1 teaspoon = 0.0004928922 decaliter). See the formula, worked examples, conversion table, and common uses.
Teaspoons to Decaliters converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
Decaliter is 10 liter units.
Result = input x 4.92892159e-6 / 0.01.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Teaspoons to Decaliters
Teaspoon and Decaliter appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Teaspoon is most often used for us recipe and cooking measurement for small quantities.
Formula
decaliters = teaspoons × 0.000492892159375
This factor comes from each unit's defined relationship to the category's base unit: 1 teaspoon equals 0.00000492892159375 base units, and 1 decaliter equals 0.01 base units, so dividing one by the other gives the direct teaspoon-to-decaliter factor of 0.000492892159375.
Simple example
1 tsp × 0.0004928921594 = 0.0004928922 daL
1 teaspoon = 0.0004928922 decaliters.
Real-world example
10 tsp × 0.0004928921594 = 0.0049289216 daL
10 teaspoons = 0.0049289216 decaliters.
Conversion table
| Teaspoon (tsp) | Decaliter (daL) |
|---|---|
| 1 tsp | 0.0004928922 daL |
| 5 tsp | 0.0024644608 daL |
| 10 tsp | 0.0049289216 daL |
| 25 tsp | 0.012322304 daL |
| 50 tsp | 0.024644608 daL |
| 100 tsp | 0.0492892159 daL |
Reverse conversion: Decaliter to Teaspoon
0.0004928922 daL × 2028.841362 = 1.000000082 tsp
0.0004928922 decaliters = 1.000000082 teaspoons.
teaspoons = decaliters × 2028.84136211
For a page dedicated to this direction, see Decaliter to Teaspoon.
Understanding the Teaspoon
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. It is classified as a US customary unit.
Where it's used: United States (cooking and recipe measurement)
Uses of the Teaspoon today
- US recipe and cooking measurement for small quantities
- Medication dosing instructions in the US
- Baking measurement alongside the tablespoon and cup
Understanding the Decaliter (daL)
Decaliter is 10 liter units.
Teaspoon — sources
- NIST Handbook 44, Appendix C — General tables of units including the US teaspoon definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decaliters are in 1 teaspoon?
1 teaspoon equals 0.0004928922 decaliters, using the exact defined conversion factor rather than an estimate.
How do I convert teaspoon to decaliter?
Multiply the teaspoon value by 0.0004928921594. The converter above does this instantly to whatever precision you set.
How do I convert decaliter back to teaspoon?
Use the reverse factor: 1 decaliter equals 2,028.841362 teaspoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a teaspoon?
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. It is classified as a US customary unit.
What is a decaliter?
Decaliter (daL) is a unit of volume.
Is the teaspoon to decaliter conversion exact?
Yes. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
Where is the teaspoon still used today?
United States (cooking and recipe measurement)