How to convert cubic feet to US gallons
gal = ft³ × 7.480519481Multiply the value in cubic feet by 7.480519481. To go the other way, multiply by 0.1336805556 (or divide by 7.480519481).
A cubic foot is larger than an US gallon: one cubic foot contains 7.480519481 US gallons.
Worked examples
- 1 cubic foot1 ft³ × 7.480519481 = 7.480519481 gal
- 5 cubic feet5 ft³ × 7.480519481 = 37.4025974 gal
- 10 cubic feet10 ft³ × 7.480519481 = 74.80519481 gal
- 20 cubic feet20 ft³ × 7.480519481 = 149.6103896 gal
- 100 cubic feet100 ft³ × 7.480519481 = 748.0519481 gal
Cubic feet to US gallons conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Cubic feet (ft³) | US gallons (gal) |
|---|---|
| 0.1 ft³ | 0.74805195 gal |
| 0.25 ft³ | 1.8701299 gal |
| 0.5 ft³ | 3.7402597 gal |
| 1 ft³ | 7.4805195 gal |
| 2 ft³ | 14.961039 gal |
| 3 ft³ | 22.441558 gal |
| 4 ft³ | 29.922078 gal |
| 5 ft³ | 37.402597 gal |
| 6 ft³ | 44.883117 gal |
| 7 ft³ | 52.363636 gal |
| 8 ft³ | 59.844156 gal |
| 9 ft³ | 67.324675 gal |
| 10 ft³ | 74.805195 gal |
| Cubic feet (ft³) | US gallons (gal) |
|---|---|
| 12 ft³ | 89.766234 gal |
| 15 ft³ | 112.20779 gal |
| 20 ft³ | 149.61039 gal |
| 25 ft³ | 187.01299 gal |
| 30 ft³ | 224.41558 gal |
| 40 ft³ | 299.22078 gal |
| 50 ft³ | 374.02597 gal |
| 75 ft³ | 561.03896 gal |
| 100 ft³ | 748.05195 gal |
| 250 ft³ | 1,870.1299 gal |
| 500 ft³ | 3,740.2597 gal |
| 1,000 ft³ | 7,480.5195 gal |
About the units
Cubic foot (ft³)
28.316846592 L. Refrigerator capacity, natural gas and shipping volumes in the US use cubic feet. One cubic foot equals 0.02831684659 cubic meters (m³).
US gallon (gal)
Defined as 231 cubic inches, exactly 3.785411784 L. US fuel, milk and paint are sold by the gallon. Four quarts or 128 US fluid ounces. One US gallon equals 0.003785411784 cubic meters (m³).
Frequently asked questions
How many US gallons are in one cubic foot?
There are 7.480519481 US gallons in one cubic foot, and this value is exact by definition.
How do I convert cubic feet to US gallons?
Multiply the number of cubic feet by 7.480519481. For example, 10 ft³ × 7.480519481 = 74.80519481 gal.
How many cubic feet are in one US gallon?
One US gallon equals 0.1336805556 cubic feet. That is the reverse factor, 1 ÷ 7.480519481.
What is 10 cubic feet in US gallons?
10 ft³ = 74.80519481 gal.
Is this ft³ to gal converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.