conversions
Cubic Feet to Gallons
Last updated: June 19, 2026
A volume conversion calculator that translates cubic feet (cu ft or ft³) to standard US liquid gallons (gal). One cubic foot is defined as the volume of a cube with 1-foot sides, which is equivalent to approximately 7.48052 US gallons.
Convert cubic feet to gallons instantly. Read the conversion answers, the mathematical formula, and browse the reference lookup table.
Quick Answer
Convert cubic feet of volume to US gallons. One cubic foot of space holds approximately 7.48052 gallons.
Cubic Feet to Gallons
Bidirectional Cubic Feet (cu ft) and Gallons (gal) Converter
Compute exact conversions between cubic feet (cu ft) and gallons (gal).
Bidirectional live updates. Enter a number in either field to convert instantly.
Answer
7.48052 gal
1 cu ft = 7.48052 gal
Cubic Feet to Gallons Reference Table
| Cubic Feet (cu ft) | Gallons (gal) | Description |
|---|---|---|
| 1 cu ft | 7.48 gal | One cubic foot |
| 2 cu ft | 14.96 gal | Two cubic feet |
| 5 cu ft | 37.40 gal | Five cubic feet |
| 10 cu ft | 74.81 gal | Ten cubic feet |
| 50 cu ft | 374.03 gal | Fifty cubic feet |
| 100 cu ft | 748.05 gal | One hundred cubic feet |
Examples
1 cu ft
7.48 gal
How it works
To convert cubic feet (cu ft) to gallons (gal), perform the following calculation:
Formula
gal = cu ft × 7.48052
Method
Multiply the cubic feet value by 7.48052 to find the equivalent volume in US gallons.
Understanding Cubic Feet to Gallons Conversions
Cubic feet is a standard cubic measure of physical volume, while gallons measure liquid capacity. Converting cubic feet to gallons is widely used when estimating the capacity of water tanks, pools, aquariums, and home plumbing systems. A single cubic foot of space can hold roughly 7.48 gallons of fluid.
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Frequently asked questions
Multiply the cubic feet value by 7.48052.
One cubic foot is approximately 7.48052 US gallons.
Multiply by 7.5 (e.g. 10 cubic feet × 7.5 ≈ 75 gallons).
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