A metric teaspoon is 5 milliliters.
Metric teaspoons to Deciliters Converter — metric tsp to dL
Convert Metric teaspoon (metric tsp) to Deciliter (dL) using the exact conversion factor (1 metric teaspoon = 0.05 deciliter). See the formula, worked examples, and conversion table.
Metric teaspoons to Deciliters 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.
Deciliter is 0.1 liter units.
Result = input x 5e-6 / 0.0001.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Metric teaspoons to Deciliters
Metric teaspoon and Deciliter 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. Specifically: A metric teaspoon is 5 milliliters, and deciliter is 0.1 liter units.
Formula
deciliters = metric teaspoons × 0.05
This factor comes from each unit's defined relationship to the category's base unit: 1 metric teaspoon equals 0.000005 base units, and 1 deciliter equals 0.0001 base units, so dividing one by the other gives the direct metric teaspoon-to-deciliter factor of 0.05.
Simple example
1 metric tsp × 0.05 = 0.05 dL
1 metric teaspoon = 0.05 deciliters.
Real-world example
10 metric tsp × 0.05 = 0.5 dL
10 metric teaspoons = 0.5 deciliters.
Conversion table
| Metric teaspoon (metric tsp) | Deciliter (dL) |
|---|---|
| 1 metric tsp | 0.05 dL |
| 5 metric tsp | 0.25 dL |
| 10 metric tsp | 0.5 dL |
| 25 metric tsp | 1.25 dL |
| 50 metric tsp | 2.5 dL |
| 100 metric tsp | 5 dL |
Reverse conversion: Deciliter to Metric teaspoon
0.05 dL × 20 = 1 metric tsp
0.05 deciliters = 1 metric teaspoon.
metric teaspoons = deciliters × 20
For a page dedicated to this direction, see Deciliter to Metric teaspoon.
Understanding the Metric teaspoon (metric tsp)
A metric teaspoon is 5 milliliters.
Understanding the Deciliter (dL)
Deciliter is 0.1 liter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many deciliters are in 1 metric teaspoon?
1 metric teaspoon equals 0.05 deciliters, using the exact defined conversion factor rather than an estimate.
How do I convert metric teaspoon to deciliter?
Multiply the metric teaspoon value by 0.05. The converter above does this instantly to whatever precision you set.
How do I convert deciliter back to metric teaspoon?
Use the reverse factor: 1 deciliter equals 20 metric teaspoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a metric teaspoon?
Metric teaspoon (metric tsp) is a unit of volume.
What is a deciliter?
Deciliter (dL) is a unit of volume.
Is the metric teaspoon to deciliter conversion exact?
Yes. Both metric teaspoon and deciliter are defined by fixed standards rather than physical artifacts, so the factor of 0.05 used above is exact to as many digits as you choose to display.