Convert cubic feet to gallons
1 ft³ = 7.48052 gal
1 gal = 0.133681 ft³
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How to convert cubic feet to gallons
Multiply the value in cubic feet by 7.48051948 to get gallons. As a formula: gal = ft³ × 7.48051948
Good to know
One cubic foot holds about 7.48 US gallons (28.317 L). It is the usual way to size an aquarium, hot tub or water tank from its length, width and depth in feet.
cubic feet to gallons conversion table
| cubic feet (ft³) | gallons (gal) |
|---|---|
| 1 ft³ | 7.48052 gal |
| 2 ft³ | 14.961 gal |
| 3 ft³ | 22.4416 gal |
| 4 ft³ | 29.9221 gal |
| 5 ft³ | 37.4026 gal |
| 6 ft³ | 44.8831 gal |
| 8 ft³ | 59.8442 gal |
| 10 ft³ | 74.8052 gal |
| 12 ft³ | 89.7662 gal |
| 15 ft³ | 112.208 gal |
| 20 ft³ | 149.61 gal |
| 25 ft³ | 187.013 gal |
| 30 ft³ | 224.416 gal |
| 50 ft³ | 374.026 gal |
| 75 ft³ | 561.039 gal |
| 100 ft³ | 748.052 gal |
| 250 ft³ | 1,870.13 gal |
| 500 ft³ | 3,740.26 gal |
| 1,000 ft³ | 7,480.52 gal |
Related conversions
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- gallons to ounces
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Need other units? The full Volume Converter converts between every unit it supports, and the Unit Converters page lists the rest.
cubic feet to gallons — questions
How many gallons are in 1 ft³?
1 ft³ = 7.48052 gal. Multiply the value in cubic feet by 7.48051948 to get gallons.
How do I convert cubic feet to gallons?
Multiply the value in cubic feet by 7.48051948. For example, 10 ft³ × 7.48051948 = 74.8052 gal.
What is 10 ft³ in gallons?
10 ft³ = 74.8052 gal.
What is 100 ft³ in gallons?
100 ft³ = 748.052 gal.