Convert Metric Teaspoon to Deciliter
Convert metric teaspoons to deciliters instantly. 1 metric teaspoon = 0.05 deciliter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Deciliter to Metric Teaspoon converter for the reverse conversion.
Units explained
Metric Teaspoon
A metric teaspoon is exactly 5 milliliters.
Adopted as the standard metric small cooking measure.
Universal in metric recipes and liquid medicine dosing.
Metrication.
Deciliter
A deciliter is one tenth of a liter (0.0001 m³).
Formed with the SI prefix deci- applied to the liter.
Common in European cooking and clinical measurements.
Metric prefix system.
Metric Teaspoon to Deciliter conversion formula
The relationship between metric teaspoons and deciliters:
To convert metric teaspoons to deciliters, multiply the value in metric teaspoons by 0.05. To reverse, multiply deciliters by 20.
How to use this converter
Type a value into the calculator. The result in deciliters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Deciliter to Metric Teaspoon converter for the reverse direction.
Step-by-step: convert metric teaspoons to deciliters
- Write down the value in metric teaspoons (tsp).
- Multiply that value by the factor 0.05.
- The product is the equivalent value in deciliters (dL).
- To reverse, multiply the deciliter value by 20.
Worked examples
Example 1 — Convert 1 tsp to dL:
1 × 0.05 = 0.05 dL
Example 2 — Convert 100 tsp to dL:
100 × 0.05 = 5 dL
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 metric teaspoons), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 tsp × 0.05 = 0.15 dL
Real-world example — Plastic-film thickness alternates
A 150-metric teaspoon plastic film converts cleanly to deciliters — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 tsp × 0.05 = 7.5 dL
Real-world example — Hair-width scale measurements
A 70-metric teaspoon measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like deciliters for direct comparison across supplier datasheets.
70 tsp × 0.05 = 3.5 dL
Metric Teaspoon to Deciliter conversion table
Standard reference values for converting metric teaspoons to deciliters:
| Metric Teaspoon [tsp] | Deciliter [dL] |
|---|---|
| 0.01 | 0.0005 |
| 0.1 | 0.005 |
| 1 | 0.05 |
| 2 | 0.1 |
| 3 | 0.15 |
| 4 | 0.2 |
| 5 | 0.25 |
| 10 | 0.5 |
| 20 | 1 |
| 30 | 1.5 |
| 40 | 2 |
| 50 | 2.5 |
| 100 | 5 |
| 500 | 25 |
| 1000 | 50 |
Frequently asked questions
How many deciliters is 1 metric teaspoon?
How do I convert metric teaspoons to deciliters?
How do I convert deciliters back to metric teaspoons?
How many deciliters is 100 metric teaspoons?
Popular volume unit conversions
Convert Metric Teaspoon to other volume units
Show all Metric Teaspoon conversions
Metric / SI (8 units)
US Customary (Liquid) (8 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (2 units)
Sources & references
Conversion factor (1 tsp = 0.05 dL) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.