421 gal ≈ 67.5889 ft³ (Imperial; in US gallons: 421 US gal = 56.2795 ft³). To convert gallons to cubic feet, multiply by 0.16054365: 421 × 0.16054365 = 67.5889.
How to convert gallons to cubic feet
ft³ = gal × 0.16054365
- 1 gal = 0.16054365 ft³ (and 1 ft³ = 6.2288355 gal).
- Multiply the amount by the factor: 421 × 0.16054365 = 67.5889.
- Answer: 421 gal ≈ 67.5889 ft³ (rounded to 6 significant figures).
Gallons to Cubic Feet table
| Gallons (gal) | Cubic Feet (ft³) |
|---|---|
| 416 gal | 66.7862 ft³ |
| 417 gal | 66.9467 ft³ |
| 418 gal | 67.1072 ft³ |
| 419 gal | 67.2678 ft³ |
| 420 gal | 67.4283 ft³ |
| 421 gal | 67.5889 ft³ |
| 422 gal | 67.7494 ft³ |
| 423 gal | 67.91 ft³ |
| 424 gal | 68.0705 ft³ |
| 425 gal | 68.2311 ft³ |
| 426 gal | 68.3916 ft³ |
| gal | ft³ |
|---|---|
| 1 gal | 0.160544 ft³ |
| 5 gal | 0.802718 ft³ |
| 10 gal | 1.6054 ft³ |
| 50 gal | 8.0272 ft³ |
| 100 gal | 16.0544 ft³ |
| 1,000 gal | 160.544 ft³ |
Good to know
The gal here is the Imperial (UK) gallon: 1 gal = 4.54609 L. A US gallon is 3.78541 L.
In US gallons: 421 US gal = 56.2795 ft³.