1 cubic foot to US gallons
1 ft³ = 7.480519 gal. Change the amount below, or read the formula and the reference table further down.
1 cubic foot equals
US gallons
1 ft³ = 7.480519 gal
The formula
Cubic feet and US gallons both measure volume from the same zero, so a single multiplier does the job.
gal = ft³ × 7.48051948
Going the other way? Convert US gallons to cubic feet.
Cubic feet to US gallons table
Values either side of 1 ft³.
| Cubic feet (ft³) | US gallons (gal) |
|---|---|
| -4 | -29.9221 |
| -3.5 | -26.1818 |
| -3 | -22.4416 |
| -2.5 | -18.7013 |
| -2 | -14.961 |
| -1.5 | -11.2208 |
| -1 | -7.4805 |
| -0.5 | -3.7403 |
| 0 | 0 |
| 0.5 | 3.7403 |
| 1 | 7.4805 |
| 1.5 | 11.2208 |
| 2 | 14.961 |
| 2.5 | 18.7013 |
| 3 | 22.4416 |
| 3.5 | 26.1818 |
| 4 | 29.9221 |
| 4.5 | 33.6623 |
| 5 | 37.4026 |
| 5.5 | 41.1429 |
| 6 | 44.8831 |
Questions people ask
- How many US gallons are in a cubic foot?
- One cubic foot equals 7.48051948 US gallons.
- How do I convert cubic feet to US gallons by hand?
- Multiply the number of cubic feet by 7.48051948. For a rough check, 7.5 is close enough for most everyday use.
- What is 1 cubic foot in US gallons?
- 1 cubic foot is 7.480519 US gallons.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.