How to convert us gallons to cubic feet
To convert us gallons to cubic feet, multiply the value by the conversion factor 0.1336805556. To go the other way, multiply by 7.480519481 (or divide by 0.1336805556).
Worked example: 25 gal to ft³
- Write the value: 25 gal
- Multiply by 0.1336805556: 25 × 0.1336805556
- Result: 3.34201 ft³
US Gallon to Cubic Foot conversion table
Quick reference values, rounded to 6 significant digits.
| US Gallon (gal) | Cubic Foot (ft³) |
|---|---|
| 0.1 gal | 0.0133681 ft³ |
| 0.25 gal | 0.0334201 ft³ |
| 0.5 gal | 0.0668403 ft³ |
| 1 gal | 0.133681 ft³ |
| 2 gal | 0.267361 ft³ |
| 3 gal | 0.401042 ft³ |
| 4 gal | 0.534722 ft³ |
| 5 gal | 0.668403 ft³ |
| 6 gal | 0.802083 ft³ |
| 7 gal | 0.935764 ft³ |
| 8 gal | 1.06944 ft³ |
| 9 gal | 1.20313 ft³ |
| 10 gal | 1.33681 ft³ |
| 12 gal | 1.60417 ft³ |
| 15 gal | 2.00521 ft³ |
| 20 gal | 2.67361 ft³ |
| 25 gal | 3.34201 ft³ |
| 30 gal | 4.01042 ft³ |
| 40 gal | 5.34722 ft³ |
| 50 gal | 6.68403 ft³ |
| 75 gal | 10.026 ft³ |
| 100 gal | 13.3681 ft³ |
| 250 gal | 33.4201 ft³ |
| 500 gal | 66.8403 ft³ |
| 1,000 gal | 133.681 ft³ |
Cubic Foot to US Gallon
| ft³ | gal |
|---|---|
| 1 ft³ | 7.48052 gal |
| 5 ft³ | 37.4026 gal |
| 10 ft³ | 74.8052 gal |
| 50 ft³ | 374.026 gal |
| 100 ft³ | 748.052 gal |
1 US Gallon in other volume units
About US Gallon and Cubic Foot
What is a us gallon (gal)?
A US liquid gallon is exactly 3.785411784 liters, used for fuel and milk in the United States.
What is a cubic foot (ft³)?
A cubic foot is about 28.32 liters, used for refrigerator capacity, sand, and freight volume (CFT).
Where us gallon to cubic foot conversion is used
Volume conversions are needed for cooking recipes, fuel, water tanks, beverages, medicine and shipping capacity. Converting between us gallons and cubic feet is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Volume Converter.
Frequently asked questions
How many cubic feet are in 1 us gallon?
1 US Gallon equals 0.133681 ft³.
How do I convert us gallons to cubic feet?
Multiply the number of us gallons by 0.1336805556. For example, 25 gal × 0.1336805556 = 3.34201 ft³.
What is 25 gal in ft³?
25 gal = 3.34201 ft³.
How many us gallons are in 1 cubic foot?
1 Cubic Foot equals 7.48052 gal. Use the Cubic Feet to Gallon converter for the reverse direction.
Is this US Gallon to Cubic Foot converter accurate?
Yes. It uses exact internationally defined conversion factors, calculated with full floating-point precision. Results are displayed rounded for readability.