US Teaspoons to Cubic Decimeters
Convert us teaspoons to cubic decimeters instantly. 1 tsp = 0.0049289216 dm³. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert us teaspoons to cubic decimeters
To convert us teaspoons to cubic decimeters, divide by 202.8841362111 (multiply by 0.0049289216). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
dm³ = tsp × 0.0049289216
US Teaspoons to Cubic Decimeters conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| US Teaspoons | Cubic Decimeters |
|---|---|
| 1 tsp | 0.004929 dm³ |
| 2 tsp | 0.009858 dm³ |
| 3 tsp | 0.014787 dm³ |
| 5 tsp | 0.024645 dm³ |
| 10 tsp | 0.049289 dm³ |
| 20 tsp | 0.098578 dm³ |
| 25 tsp | 0.123223 dm³ |
| 50 tsp | 0.246446 dm³ |
| 100 tsp | 0.492892 dm³ |
| 500 tsp | 2.464461 dm³ |
| 1,000 tsp | 4.928922 dm³ |
What is a us teaspoon?
About 4.93 mL. The smallest standard US kitchen measure.
What is a cubic decimeter?
Exactly one litre, by definition.
The formula
dm³ = tsp × 0.0049289216
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the US Teaspoons to Cubic Decimeters
- Type the number of us teaspoons you want to convert.
- Read the result in cubic decimeters straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked cubic decimeters to us teaspoons page.
US Teaspoons to Cubic Decimeters — frequently asked questions
How many cubic decimeters are in a us teaspoon?
One us teaspoon equals 0.0049289216 dm³. dm³ = tsp × 0.0049289216
What is the formula to convert us teaspoons to cubic decimeters?
The formula is dm³ = tsp × 0.0049289216. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert cubic decimeters back to us teaspoons?
Divide instead of multiplying: one cubic decimeter is 202.8841362111 tsp. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this us teaspoons to cubic decimeters free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error