US cups to US gallons
US gallons = US cups × 0.0625
Reverse: US gallons to US cups
How to convert US cups to US gallons
One US cup is 0.0625 US gallons, so multiply the number of US cups by 0.0625. For example, 20 US cups is 20 × 0.0625 = 1.25 US gallons. To go back, divide by the same number, or multiply by 16.
Quick estimate
Multiplying by about 0.06 gets within 4.0% of the exact answer, which is enough to check that a result makes sense.
Where it comes up
Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.
| US cups | US gallons |
|---|---|
| 1 cup | 0.0625 gal |
| 2 cup | 0.125 gal |
| 3 cup | 0.1875 gal |
| 4 cup | 0.25 gal |
| 5 cup | 0.3125 gal |
| 6 cup | 0.375 gal |
| 7 cup | 0.4375 gal |
| 8 cup | 0.5 gal |
| 9 cup | 0.5625 gal |
| 10 cup | 0.625 gal |
| 11 cup | 0.6875 gal |
| 12 cup | 0.75 gal |
| 13 cup | 0.8125 gal |
| 14 cup | 0.875 gal |
| 15 cup | 0.9375 gal |
| 16 cup | 1 gal |
| 17 cup | 1.0625 gal |
| 18 cup | 1.125 gal |
| 19 cup | 1.1875 gal |
| 20 cup | 1.25 gal |
| 25 cup | 1.5625 gal |
| 30 cup | 1.875 gal |
| 40 cup | 2.5 gal |
| 50 cup | 3.125 gal |
| 60 cup | 3.75 gal |
| 70 cup | 4.375 gal |
| 75 cup | 4.6875 gal |
| 80 cup | 5 gal |
| 90 cup | 5.625 gal |
| 100 cup | 6.25 gal |
| 120 cup | 7.5 gal |
| 150 cup | 9.375 gal |
| 200 cup | 12.5 gal |
| 250 cup | 15.625 gal |
| 300 cup | 18.75 gal |
| 400 cup | 25 gal |
| 500 cup | 31.25 gal |
| 750 cup | 46.875 gal |
| 1,000 cup | 62.5 gal |
| 1,500 cup | 93.75 gal |
| 2,000 cup | 125 gal |
| 5,000 cup | 312.5 gal |
| 10,000 cup | 625 gal |
Questions
How many US gallons are in a US cup?
0.0625 US gallons.
How do I convert US cups to US gallons in a spreadsheet?
Put the value in A1 and type =A1*0.0625, then fill the formula down the column.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.