Convert Teaspoon (US) to US cups
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) = 0.0208333 US cups
US cups = Teaspoon (US) × 0.020833327
Convert any amount
Teaspoon (US) to US cups table
| Teaspoon (US) | US cups |
|---|---|
| 0.25 Teaspoon (US) | 0.00520833 US cups |
| 0.5 Teaspoon (US) | 0.0104167 US cups |
| 1 Teaspoon (US) | 0.0208333 US cups |
| 2 Teaspoon (US) | 0.0416667 US cups |
| 3 Teaspoon (US) | 0.0625 US cups |
| 4 Teaspoon (US) | 0.0833333 US cups |
| 5 Teaspoon (US) | 0.104167 US cups |
| 10 Teaspoon (US) | 0.208333 US cups |
| 20 Teaspoon (US) | 0.416667 US cups |
| 25 Teaspoon (US) | 0.520833 US cups |
| 50 Teaspoon (US) | 1.04167 US cups |
| 100 Teaspoon (US) | 2.08333 US cups |
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 If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.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 US cups are in a Teaspoon (US)?
1 Teaspoon (US) = 0.0208333 US cups. Multiply the number of Teaspoon (US) by 0.020833327 to get US cups.
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 US cups. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/tsp-us-to-us-cup
Report an incorrect value or source
Regional units vary by district and by century. If this figure, its variant list or its citation is wrong where you are, tell us — the report carries the page context automatically.