1 gallon is equal to approximately 0.1337 cubic feet.
Table of Contents
When converting gallons to cubic feet, you convert a volume measurement commonly used in the US liquid system, into cubic feet which is a unit of volume in the Imperial and US customary systems. This lets you compare or use volume values in different measurement units.
Conversion Tool
Result in cubic:
Conversion Formula
The formula to convert gallons to cubic feet is:
Cubic Feet = Gallons × 0.1336805556
This works because 1 gallon equals 231 cubic inches, and 1 cubic foot equals 1728 cubic inches. Dividing 231 by 1728 gives approximately 0.1336805556 cubic feet per gallon.
Step-by-step:
- 1 gallon = 231 cubic inches
- 1 cubic foot = 1728 cubic inches
- Therefore, 1 gallon = 231 ÷ 1728 = 0.1336805556 cubic feet
Conversion Example
- Convert 5 gallons to cubic feet:
– Multiply 5 by 0.1336805556
– 5 × 0.1336805556 = 0.6684 cubic feet
– Result: 5 gallons is about 0.6684 cubic feet - Convert 10 gallons to cubic feet:
– Multiply 10 by 0.1336805556
– 10 × 0.1336805556 = 1.3368 cubic feet
– So, 10 gallons equals approximately 1.3368 cubic feet - Convert 0.5 gallons to cubic feet:
– Multiply 0.5 by 0.1336805556
– 0.5 × 0.1336805556 = 0.0668 cubic feet
– Half gallon equals 0.0668 cubic feet - Convert 3.25 gallons to cubic feet:
– Multiply 3.25 by 0.1336805556
– 3.25 × 0.1336805556 = 0.4344 cubic feet
– Result: 3.25 gallons is about 0.4344 cubic feet
Conversion Chart
The chart below shows values from -24.0 to 26.0 gallons converted to cubic feet. You can read across the rows to find the gallon value, and the adjacent cell shows its equivalent volume in cubic feet. Negative values represent volume in reverse direction or theoretical subtraction.
| Gallons | Cubic Feet |
|---|---|
| -24.0 | -3.2083 |
| -20.0 | -2.6736 |
| -16.0 | -2.1389 |
| -12.0 | -1.6042 |
| -8.0 | -1.0694 |
| -4.0 | -0.5347 |
| 0.0 | 0.0000 |
| 2.0 | 0.2674 |
| 4.0 | 0.5347 |
| 6.0 | 0.8021 |
| 8.0 | 1.0694 |
| 10.0 | 1.3368 |
| 12.0 | 1.6042 |
| 14.0 | 1.8715 |
| 16.0 | 2.1389 |
| 18.0 | 2.4063 |
| 20.0 | 2.6736 |
| 22.0 | 2.9410 |
| 24.0 | 3.2083 |
| 26.0 | 3.4757 |
Related Conversion Questions
- How many cubic feet are in 1 gallon?
- What is the formula to convert 1 gallon into cubic units?
- Is 1 gallon bigger or smaller than 1 cubic foot?
- How do I change 1 gallon to cubic feet using a calculator?
- Can I convert 1 gallon to cubic meters directly?
- Why does 1 gallon equal 0.1337 cubic feet?
- What’s the volume in cubic feet if I have 1 gallon of liquid?
Conversion Definitions
Gallon: A gallon is a unit of volume measurement in the US customary system, used mainly for liquids like fuel, milk, or water. One US gallon equals exactly 231 cubic inches, or about 3.785 liters. It’s widely used in the United States and some Caribbean countries.
Cubic: The term cubic refers to a volume measurement based on the cube of length units. For example, cubic feet represents the volume of a cube with edges one foot long. It’s a standard way to measure space or volume in construction, shipping, and science.
Conversion FAQs
Can I convert gallons to cubic feet for dry materials?
Gallons measure liquid volume, but dry materials can sometimes be measured in gallons too, especially in agriculture. However, because dry materials vary in density, converting gallons to cubic feet for solids might need additional weight or density info for accuracy.
Are all gallons the same when converting to cubic feet?
No, there are different gallon types like US liquid gallon, US dry gallon, and Imperial gallon. The conversion factor here is for the US liquid gallon. Using other gallon types requires their specific conversion values to cubic feet.
Why is the conversion factor a decimal number?
Because 1 gallon is smaller than 1 cubic foot, when converting, the result is a decimal less than 1. The factor 0.1336805556 represents the fraction of one cubic foot that equals one gallon.
Does temperature affect gallon to cubic feet conversion?
Temperature changes volume of liquids slightly due to expansion or contraction, but the mathematical conversion factor stays constant. For precise scientific work, temperature effects might be considered, but for general use, it’s negligible.
Can I use this conversion for both water and oil?
The conversion from gallons to cubic feet is volume-based, so it applies to any liquid regardless of type. However, density differences affect weight, not volume, so the volume conversion remains the same.