A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
Teaspoon to Cup
Convert Teaspoon to Cup instantly. Free online cooking unit converter with exact formula, conversion table and FAQ.
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Convert cooking volume and mass units used in recipes and nutrition workflows.
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Some unit families need one extra value for a physically accurate result.
A US customary cup equals 236.5882365 milliliters, widely used in American recipes.
cup = tsp × 0.02083333333
Results update instantly for Teaspoon to Cup conversions.
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Formula
cup = tsp × 0.02083333333
tsp = cup × 48
Conversion table
| 1 tsp | 0.020833 cup |
| 5 tsp | 0.104167 cup |
| 10 tsp | 0.208333 cup |
| 20 tsp | 0.416667 cup |
| 50 tsp | 1.041667 cup |
| 100 tsp | 2.083333 cup |
| 500 tsp | 10.416667 cup |
| 1000 tsp | 20.833333 cup |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the teaspoon (tsp). A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
What is the destination unit in this conversion?
The destination unit is the cup (cup). A US customary cup equals 236.5882365 milliliters, widely used in American recipes.
How do I convert teaspoon to cup?
Multiply the teaspoon value by 0.02083333333. For example, 10 tsp × 0.02083333333 = 0.208333 cup.
Is the teaspoon to cup conversion exact?
Yes. This conversion uses a fixed factor defined for cooking measurement standards, so results are consistent every time.
Where is this conversion commonly used?
It's used when following recipes, adjusting ingredient quantities, or converting between US customary and metric cooking measurements.
Can I convert cup back to teaspoon?
Yes. Multiply the cup value by 48 to get teaspoon.
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About this conversion
This page converts teaspoon (tsp) to cup (cup) within the cooking converter.
A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes. A US customary cup equals 236.5882365 milliliters, widely used in American recipes.
The formula is cup = tsp × 0.02083333333, based on each unit's fixed relationship to the cooking converter's reference units.
Results are consistent because the conversion relies on a fixed numerical ratio rather than an estimate.
Use the calculator above for instant results, or the table below for common teaspoon values already converted to cup.