US gallons (gal) to Cubic feet (ft³) Conversion
US gallons
The US liquid gallon is a unit of volume equal to exactly 3.785411784 litres, used primarily in the United States for fuel sales, beverage containers, and agricultural applications. It is divided into 4 quarts, 8 pints, or 128 fluid ounces. The US gallon is approximately 16.7% smaller than the imperial (UK) gallon — a difference with significant implications in fuel economy comparisons and recipe conversions.
Cubic feet
The cubic foot is a unit of volume equal to exactly 28.316846592 litres, used in the United States and United Kingdom for measuring large volumes such as room air volumes, refrigerator capacities, concrete quantities, and natural gas consumption. It is the standard unit for HVAC calculations in the United States, where airflow is measured in cubic feet per minute (CFM).
| US gallons (gal) | Cubic feet (ft³) |
|---|---|
| 0.1 gal | 0.0134 ft³ |
| 1 gal | 0.1337 ft³ |
| 2 gal | 0.2674 ft³ |
| 3 gal | 0.401 ft³ |
| 5 gal | 0.6684 ft³ |
| 10 gal | 1.3368 ft³ |
| 20 gal | 2.6736 ft³ |
| 30 gal | 4.0104 ft³ |
| 50 gal | 6.684 ft³ |
| 100 gal | 13.3681 ft³ |
| 1000 gal | 133.6806 ft³ |
Frequently Asked Questions (FAQ)
How many cubic feet are in 1 US gallons?
1 US gallons (gal) is exactly 0.133681 cubic feet (ft³).
How do I convert US gallons to cubic feet?
Multiply the value in US gallons by 0.133681 to get the result in cubic feet. Or use the converter above — type any number and see the result instantly.