📏 US cups to US gallons Converter
Convert us cups (cup) to us gallons (gal) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 us cup (cup) = 0.0625 us gallons (gal). Formula: gal = cup × 0.0625.
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US cups to US gallons Converter inputs
Result
US cups to US gallons conversion table
| US cups (cup) | US gallons (gal) |
|---|---|
| 0.1 cup | 0.00625 gal |
| 0.5 cup | 0.03125 gal |
| 1 cup | 0.0625 gal |
| 2 cup | 0.125 gal |
| 3 cup | 0.1875 gal |
| 5 cup | 0.3125 gal |
| 10 cup | 0.625 gal |
| 20 cup | 1.25 gal |
| 25 cup | 1.5625 gal |
| 50 cup | 3.125 gal |
| 100 cup | 6.25 gal |
| 1,000 cup | 62.5 gal |
Other volume conversions
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How to convert us cups to us gallons
Multiply the number of us cups by 0.0625 to get us gallons: gal = cup × 0.0625.
Example: 5 cup = 0.3125 gal.
The us cup (cup) and the us gallon (gal) are both units of volume. Need the opposite direction? Use the gal to cup converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many us gallons are in a us cup?
1 us cup = 0.0625 us gallons.
How do I convert us cups to us gallons?
Use the formula gal = cup × 0.0625. For example, 5 cup = 0.3125 gal.
How do I convert us gallons back to us cups?
1 us gallon = 16 us cups. Use the gal to cup converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.