Convert cups to gallons
Cup (cup) to gallon (gal). One cup equals 0.0625 gallons.
Formula
Cup to gallon conversion table
| Cups | Gallons | Gallons | Cups |
|---|---|---|---|
| 1 cup | 0.0625 gal | 1 gal | 16 cup |
| 2 cup | 0.125 gal | 2 gal | 32 cup |
| 3 cup | 0.1875 gal | 3 gal | 48 cup |
| 5 cup | 0.3125 gal | 5 gal | 80 cup |
| 10 cup | 0.625 gal | 10 gal | 160 cup |
| 20 cup | 1.25 gal | 20 gal | 320 cup |
| 50 cup | 3.125 gal | 50 gal | 800 cup |
| 100 cup | 6.25 gal | 100 gal | 1600 cup |
| 500 cup | 31.25 gal | 500 gal | 8000 cup |
| 1000 cup | 62.5 gal | 1000 gal | 16000 cup |
To convert cups to gallons, divide the number of cups by 16. One cup equals 0.0625 gallons, and one gallon equals 16 cups, so the relationship is fixed and exact. As a worked example, 10 cup comes to 0.625 gal. Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a volume conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common cup values already worked out in gallons, plus the reverse gallon to cup direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many gallons are in a cup?
One cup equals 0.0625 gallons. The ratio is constant, so you can multiply any number of cups by 0.0625 to get gallons.
What is the formula to convert cups to gallons?
Use gallons = cups ÷ 16. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert gallons back to cups?
Go the other way by using one gallon equals 16 cups. You can also press the swap button in the converter above to flip the direction in one click.
Is this cup to gallon converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.