Cubic feet (ft³) to US gallons (gal) Conversion
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
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 (ft³) | US gallons (gal) |
|---|---|
| 0.1 ft³ | 0.7481 gal |
| 1 ft³ | 7.4805 gal |
| 2 ft³ | 14.961 gal |
| 3 ft³ | 22.4416 gal |
| 5 ft³ | 37.4026 gal |
| 10 ft³ | 74.8052 gal |
| 20 ft³ | 149.6104 gal |
| 30 ft³ | 224.4156 gal |
| 50 ft³ | 374.026 gal |
| 100 ft³ | 748.0519 gal |
| 1000 ft³ | 7,480.5195 gal |
Frequently Asked Questions (FAQ)
How many US gallons are in 1 cubic feet?
1 cubic feet (ft³) is exactly 7.4805 US gallons (gal).
How do I convert cubic feet to US gallons?
Multiply the value in cubic feet by 7.4805 to get the result in US gallons. Or use the converter above — type any number and see the result instantly.