Teaspoons to Cups
Convert tsp to cup quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
1 tsp equals approximately 0.0208333 cup.
How to use the Teaspoons to Cups
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
1 tsp equals approximately 0.0208333 cup.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common tsp to cup conversions
| tsp | cup |
|---|---|
| 1 tsp | 0.020833 cup |
| 2 tsp | 0.041667 cup |
| 5 tsp | 0.104167 cup |
| 10 tsp | 0.208333 cup |
| 20 tsp | 0.416667 cup |
| 50 tsp | 1.041667 cup |
Example
For example, entering 1 tsp gives approximately 0.020833 cup using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.