Convert millilitres to Teaspoon (US)
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 millilitre = 0.202884 Teaspoon (US)
Teaspoon (US) = millilitres × 0.2028842
Convert any amount
millilitres to Teaspoon (US) table
| millilitres | Teaspoon (US) |
|---|---|
| 0.25 millilitres | 0.0507211 Teaspoon (US) |
| 0.5 millilitres | 0.101442 Teaspoon (US) |
| 1 millilitre | 0.202884 Teaspoon (US) |
| 2 millilitres | 0.405768 Teaspoon (US) |
| 3 millilitres | 0.608653 Teaspoon (US) |
| 4 millilitres | 0.811537 Teaspoon (US) |
| 5 millilitres | 1.01442 Teaspoon (US) |
| 10 millilitres | 2.02884 Teaspoon (US) |
| 20 millilitres | 4.05768 Teaspoon (US) |
| 25 millilitres | 5.07211 Teaspoon (US) |
| 50 millilitres | 10.1442 Teaspoon (US) |
| 100 millilitres | 20.2884 Teaspoon (US) |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 Teaspoon (US) are in a millilitre?
1 millilitre = 0.202884 Teaspoon (US). Multiply the number of millilitres by 0.2028842 to get Teaspoon (US).
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 millilitres to Teaspoon (US). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/milliliter-to-tsp-us
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