Convert Teaspoon (US) to litres
Americas · Cooking Measures · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 Teaspoon (US) = 0.00492892 litres
litres = Teaspoon (US) × 0.00492892
Convert any amount
Teaspoon (US) to litres table
| Teaspoon (US) | litres |
|---|---|
| 0.25 Teaspoon (US) | 0.00123223 litres |
| 0.5 Teaspoon (US) | 0.00246446 litres |
| 1 Teaspoon (US) | 0.00492892 litres |
| 2 Teaspoon (US) | 0.00985784 litres |
| 3 Teaspoon (US) | 0.0147868 litres |
| 4 Teaspoon (US) | 0.0197157 litres |
| 5 Teaspoon (US) | 0.0246446 litres |
| 10 Teaspoon (US) | 0.0492892 litres |
| 20 Teaspoon (US) | 0.0985784 litres |
| 25 Teaspoon (US) | 0.123223 litres |
| 50 Teaspoon (US) | 0.246446 litres |
| 100 Teaspoon (US) | 0.492892 litres |
About the Teaspoon (US)
US teaspoon = 4.93ml.
- Symbol
- tsp
- Value in SI
- 1 Teaspoon (US) = 0.00492892 litre
- Typical use
- cooking
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI litre. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other cooking measures units in the Americas family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
Related conversions
Frequently asked
How many litres are in a Teaspoon (US)?
1 Teaspoon (US) = 0.00492892 litres. Multiply the number of Teaspoon (US) by 0.00492892 to get litres.
What is Teaspoon (US) used for?
US teaspoon = 4.93ml. It is classified as active and dates from the modern period.
Is the Teaspoon (US) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI litre, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Teaspoon (US) conversion?
Conventional value — The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert Teaspoon (US) to litres. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/tsp-us-to-liter
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