Convert US cups 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.
Quick answer
1 US cup = 48 Teaspoon (US)
1 US cup = 48 Teaspoon (US). Teaspoon (US) is a traditional volume unit from Americas.
Convert any amount
US cups to Teaspoon (US) table
| US cups | Teaspoon (US) |
|---|---|
| 0.25 US cups | 12 Teaspoon (US) |
| 0.5 US cups | 24 Teaspoon (US) |
| 1 US cup | 48 Teaspoon (US) |
| 2 US cups | 96 Teaspoon (US) |
| 3 US cups | 144 Teaspoon (US) |
| 4 US cups | 192 Teaspoon (US) |
| 5 US cups | 240 Teaspoon (US) |
| 10 US cups | 480 Teaspoon (US) |
| 20 US cups | 960 Teaspoon (US) |
| 25 US cups | 1,200 Teaspoon (US) |
| 50 US cups | 2,400 Teaspoon (US) |
| 100 US cups | 4,800 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.
Frequently asked
How many Teaspoon (US) are in a US cup?
1 US cup = 48 Teaspoon (US). Multiply the number of US cups by 48.000016 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 US cups to Teaspoon (US). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/us-cup-to-tsp-us
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