US teaspoon to Cubic decimeter
tsp
dm³
Conversion History
| Conversion | Reuse | Delete |
|---|---|---|
| No conversion history to show. | ||
Quick Reference Table (US teaspoon to Cubic decimeter)
| US teaspoon (tsp) | Cubic decimeter (dm³) |
|---|---|
| 0.25 | 0.001232230398443925 |
| 0.5 | 0.00246446079688785 |
| 1 | 0.0049289215937757 |
| 2 | 0.0098578431875514 |
| 3 | 0.0147867647813271 |
| 6 | 0.0295735295626542 |
About US teaspoon (tsp)
The US teaspoon (tsp) is a unit of culinary volume equal to approximately 4.929 milliliters, one third of a US tablespoon. It is one of the smallest standard US customary volume units, used in cooking, baking, and medicine for small ingredient quantities. The US teaspoon differs from the metric teaspoon (exactly 5 mL) and the imperial teaspoon (about 5.92 mL). In medicine, 5 mL is the standardized dosing teaspoon.
A standard dose of liquid children's medicine is one 5 mL teaspoon. A recipe calling for 1 tsp of vanilla extract uses about 4.93 mL.
About Cubic decimeter (dm³)
A cubic decimeter (dm³) is the volume of a cube with sides of 10 centimeters, exactly equal to one liter (1 dm³ = 1 L). This equivalence is exact and defined by the SI. The cubic decimeter appears in physics and chemistry textbooks as the formal SI expression of volume where liters are used in practice, and in engineering calculations requiring dimensional consistency. One dm³ of pure water at 4°C has a mass of exactly one kilogram.
A standard 1-liter water bottle contains exactly 1 dm³. A typical lunchbox has a volume of roughly 2–3 dm³.
US teaspoon – Frequently Asked Questions
How many milliliters is a US teaspoon?
One US teaspoon equals approximately 4.929 mL, typically rounded to 5 mL in medicine and 4.93 mL in precise culinary conversions. The metric teaspoon used in Australia and Canada is exactly 5 mL.
What is the difference between a US teaspoon and an imperial teaspoon?
A US teaspoon is about 4.93 mL; an imperial (UK) teaspoon is about 5.92 mL — approximately 20% larger. This difference can affect recipes crossing US and UK sources, particularly for spices and leavening agents.
How many teaspoons are in a tablespoon?
In the US system, 3 teaspoons equal 1 tablespoon (3 × 4.929 mL = 14.787 mL). The metric equivalent is the same ratio: 3 × 5 mL = 15 mL tablespoon.
Is a medicine teaspoon the same as a cooking teaspoon?
Not exactly. Medicine dosing uses a standardized 5 mL teaspoon, while the US cooking teaspoon is about 4.93 mL. For medication accuracy, always use a calibrated oral syringe rather than a kitchen teaspoon, which can vary from 3 to 7 mL.
How many US teaspoons are in a cup?
There are 48 US teaspoons in one US cup: 1 cup = 16 tablespoons = 48 teaspoons.
Cubic decimeter – Frequently Asked Questions
Is a cubic decimeter the same as a liter?
Yes, exactly. One cubic decimeter (dm³) is defined as equal to one liter (L). This is the foundational link between the cubic metric system and the liter-based system used in everyday measurement.
Why do textbooks use dm³ instead of liter?
In formal SI notation, volume is expressed in cubic meters or submultiples like dm³. The liter is accepted but technically non-SI. Chemistry texts use dm³ to maintain dimensional consistency, though liter and dm³ are completely interchangeable.
How many cubic decimeters are in a cubic meter?
There are 1,000 cubic decimeters in one cubic meter (m³), because 1 m = 10 dm and 10³ = 1,000. This also means 1 m³ = 1,000 liters.
What is the relationship between dm³ and cm³?
One cubic decimeter equals 1,000 cubic centimeters (cm³). Since 1 cm³ = 1 mL, it follows that 1 dm³ = 1 L = 1,000 mL — fully consistent within the metric system.
Where is the cubic decimeter used in practice?
The cubic decimeter appears primarily in scientific and educational contexts, particularly chemistry and physics where SI units are preferred. In everyday life, the liter is used instead — but they refer to the same volume.