How to convert US gallons to cubic feet
ft³ = gal × 0.1336805556Multiply the value in US gallons by 0.1336805556. To go the other way, multiply by 7.480519481 (or divide by 0.1336805556).
An US gallon is smaller than a cubic foot: it takes 7.480519481 US gallons to make one cubic foot.
Worked examples
- 1 US gallon1 gal × 0.1336805556 = 0.1336805556 ft³
- 5 US gallons5 gal × 0.1336805556 = 0.6684027778 ft³
- 10 US gallons10 gal × 0.1336805556 = 1.336805556 ft³
- 20 US gallons20 gal × 0.1336805556 = 2.673611111 ft³
- 100 US gallons100 gal × 0.1336805556 = 13.36805556 ft³
US gallons to cubic feet conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| US gallons (gal) | Cubic feet (ft³) |
|---|---|
| 0.1 gal | 0.013368056 ft³ |
| 0.25 gal | 0.033420139 ft³ |
| 0.5 gal | 0.066840278 ft³ |
| 1 gal | 0.13368056 ft³ |
| 2 gal | 0.26736111 ft³ |
| 3 gal | 0.40104167 ft³ |
| 4 gal | 0.53472222 ft³ |
| 5 gal | 0.66840278 ft³ |
| 6 gal | 0.80208333 ft³ |
| 7 gal | 0.93576389 ft³ |
| 8 gal | 1.0694444 ft³ |
| 9 gal | 1.203125 ft³ |
| 10 gal | 1.3368056 ft³ |
| US gallons (gal) | Cubic feet (ft³) |
|---|---|
| 12 gal | 1.6041667 ft³ |
| 15 gal | 2.0052083 ft³ |
| 20 gal | 2.6736111 ft³ |
| 25 gal | 3.3420139 ft³ |
| 30 gal | 4.0104167 ft³ |
| 40 gal | 5.3472222 ft³ |
| 50 gal | 6.6840278 ft³ |
| 75 gal | 10.026042 ft³ |
| 100 gal | 13.368056 ft³ |
| 250 gal | 33.420139 ft³ |
| 500 gal | 66.840278 ft³ |
| 1,000 gal | 133.68056 ft³ |
About the units
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).
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).
Frequently asked questions
How many cubic feet are in one US gallon?
There are 0.1336805556 cubic feet in one US gallon, and this value is exact by definition.
How do I convert US gallons to cubic feet?
Multiply the number of US gallons by 0.1336805556. For example, 10 gal × 0.1336805556 = 1.336805556 ft³.
How many US gallons are in one cubic foot?
One cubic foot equals 7.480519481 US gallons. That is the reverse factor, 1 ÷ 0.1336805556.
What is 10 US gallons in cubic feet?
10 gal = 1.336805556 ft³.
Is this gal to ft³ 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.