Cups to quarts
One cup equals 0.25 qt. 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
| cups | quarts |
|---|---|
| 1 cup | 0.25 qt |
| 2 cup | 0.5 qt |
| 3 cup | 0.75 qt |
| 5 cup | 1.25 qt |
| 10 cup | 2.5 qt |
| 15 cup | 3.75 qt |
| 20 cup | 5 qt |
| 25 cup | 6.25 qt |
| 50 cup | 12.5 qt |
| 100 cup | 25 qt |
| 500 cup | 125 qt |
| 1000 cup | 250 qt |
How to use
- Enter the number of cups in the field.
- The result in quarts 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: qt = cup ÷ 4. Going back the other way, one qt is 4 cup.
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.
qt = cup ÷ 4
Frequently asked questions
How many quarts are in one cups?
One cup is 0.25 qt.
How do I convert cups to quarts?
Multiply by the factor: qt = cup ÷ 4.
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 quarts back to cups?
One qt is 4 cup — or open the reverse page linked below.