Gallon to Cubic Foot Converter
Convert US gallons to cubic feet. Divide by 7.48052—1 ft³ holds about 7.48 gallons. For tanks, pools, and plumbing volume.
How to Convert Gallon to Cubic foot
Divide US gallons by 7.48052 (1 ft³ = 7.48051948 US gal).
Conversion Formula:
value / 7.48052Conversion Examples
Example: 7.48 gallons to ft³
- 7.48 ÷ 7.48052 ≈ 1 ft³
≈ 1 cubic foot
One ft³ in gallons.
Example: 24 gallons to ft³
- 24 ÷ 7.48052 ≈ 3.21 ft³
24 gal ≈ 3.21 ft³
Typical small tank volume.
Conversion Chart
| Gallon | Cubic foot |
|---|---|
| 1 | 0.1337 |
| 2 | 0.2674 |
| 3 | 0.401 |
| 4 | 0.5347 |
| 5 | 0.6684 |
| 6 | 0.8021 |
| 7 | 0.9358 |
| 8 | 1.0694 |
| 9 | 1.2031 |
| 10 | 1.3368 |
| 15 | 2.0052 |
| 20 | 2.6736 |
| 30 | 4.0104 |
| 60 | 8.0208 |
| 100 | 13.3681 |
Conversion Formula
Divide US gallons by **7.48052** to get cubic feet.
Quick Conversion Tip
Divide gallons by 7.48 for a quick ft³ estimate.
Unit Definitions
US Gallon (gal)
A US gallon is a common liquid volume unit used in the United States for fuel, beverages, and water.
1 US gallon = 3.78541 liters = 128 US fluid ounces = 16 US cups
Cubic Foot (ft³)
A cubic foot is a US customary and imperial volume unit defined by a cube that measures one foot on each side.
1 cubic foot = 1728 cubic inches = 28.3168 liters ≈ 7.48052 US gallons
Common Use Cases
- Water heater and tank capacity in ft³.
- Pool and pond volume calculations.
- Plumbing and irrigation system sizing.
- Homework on gallon ↔ cubic foot math.
Understanding the Conversion
1 cubic foot ≈ 7.48052 US gallons. Divide gallons by 7.48052 for ft³.
Examples: 7.48 gal ≈ 1 ft³; 24 gal ≈ 3.21 ft³. Used for water tanks, pool volume, and HVAC when specs mix gallons and cubic feet.
Multiply cubic feet by 7.48052 for gallons.
FAQs
How many gallons in one cubic foot?
About 7.48052 US gallons.
How do I convert gallons to cubic feet?
Divide US gallons by 7.48052.
How many ft³ is 15 gallons?
15 ÷ 7.48052 ≈ 2.01 ft³.