Teaspoons to cups
One tsp equals 0.02083333333 cup. Type any number and the answer appears as you type — the maths happens in your browser.
Result
The same value in every unit
| Unit | Value |
|---|
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Common values
| teaspoons | cups |
|---|---|
| 1 tsp | 0.020833333 cup |
| 2 tsp | 0.041666667 cup |
| 3 tsp | 0.0625 cup |
| 5 tsp | 0.10416667 cup |
| 10 tsp | 0.20833333 cup |
| 15 tsp | 0.3125 cup |
| 20 tsp | 0.41666667 cup |
| 25 tsp | 0.52083333 cup |
| 50 tsp | 1.0416667 cup |
| 100 tsp | 2.0833333 cup |
| 500 tsp | 10.416667 cup |
| 1000 tsp | 20.833333 cup |
How to use
- Enter the number of teaspoons in the field.
- The result in cups updates on every keystroke.
- Use the table below for the values people look up most often.
Formula and reverse conversion
The formula
To convert by hand: cup = tsp ÷ 48. Going back the other way, one cup is 48 tsp.
Where the odd number comes from
The factor is not a round number because the imperial units are defined through the metric ones by international agreement: an inch is exactly 25.4 mm and a pound is exactly 0.45359237 kg. Everything else follows from those definitions.
cup = tsp ÷ 48
Frequently asked questions
How many cups are in one teaspoons?
One tsp is 0.02083333333 cup.
How do I convert teaspoons to cups?
Multiply by the factor: cup = tsp ÷ 48.
Is the result exact?
The factors are the exact legal definitions, and up to ten significant digits are kept in the answer. Rounding happens only in the display.
How do I convert cups back to teaspoons?
One cup is 48 tsp — or open the reverse page linked below.