Convert gallons to cups
Gallon (gal) to cup (cup). One gallon equals 16 cups.
Formula
Gallon to cup conversion table
| Gallons | Cups | Cups | Gallons |
|---|---|---|---|
| 1 gal | 16 cup | 1 cup | 0.0625 gal |
| 2 gal | 32 cup | 2 cup | 0.125 gal |
| 3 gal | 48 cup | 3 cup | 0.1875 gal |
| 5 gal | 80 cup | 5 cup | 0.3125 gal |
| 10 gal | 160 cup | 10 cup | 0.625 gal |
| 20 gal | 320 cup | 20 cup | 1.25 gal |
| 50 gal | 800 cup | 50 cup | 3.125 gal |
| 100 gal | 1600 cup | 100 cup | 6.25 gal |
| 500 gal | 8000 cup | 500 cup | 31.25 gal |
| 1000 gal | 16000 cup | 1000 cup | 62.5 gal |
To convert gallons to cups, multiply the number of gallons by 16. One gallon equals 16 cups, and one cup equals 0.0625 gallons, so the relationship is fixed and exact. As a worked example, 10 gal comes to 160 cup. 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 gallon values already worked out in cups, plus the reverse cup to gallon direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many cups are in a gallon?
One gallon equals 16 cups. The ratio is constant, so you can multiply any number of gallons by 16 to get cups.
What is the formula to convert gallons to cups?
Use cups = gallons × 16. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert cups back to gallons?
Go the other way by using one cup equals 0.0625 gallons. You can also press the swap button in the converter above to flip the direction in one click.
Is this gallon to cup 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.