7 gallons is equal to approximately 0.9389 cubic feet.
Table of Contents
To convert gallons to cubic feet, you multiply the number of gallons by the conversion factor 0.133681, since 1 gallon equals 0.133681 cubic feet. This allows you to express the volume in cubic units, which is useful for spatial measurements.
Conversion Tool
Result in cubic:
Conversion Formula
The formula to convert gallons to cubic feet is:
Cubic Feet = Gallons × 0.133681
This works because one US liquid gallon is defined as exactly 231 cubic inches. Since one cubic foot contains 1728 cubic inches, dividing 231 by 1728 gives the conversion factor:
- 231 in³ ÷ 1728 in³/ft³ = 0.133681 ft³
Using this factor, multiply any gallon value to find its volume in cubic feet.
For example, converting 7 gallons:
- 7 gallons × 0.133681 = 0.935767 cubic feet
- Rounded to four decimal places: 0.9358 ft³
Conversion Example
- 5 gallons to cubic feet:
- Multiply 5 by 0.133681
- 5 × 0.133681 = 0.668405 cubic feet
- Result: 0.6684 ft³
- 12 gallons to cubic feet:
- Multiply 12 by 0.133681
- 12 × 0.133681 = 1.604172 cubic feet
- Result: 1.6042 ft³
- 0.5 gallons to cubic feet:
- Multiply 0.5 by 0.133681
- 0.5 × 0.133681 = 0.0668405 cubic feet
- Result: 0.0668 ft³
- 20 gallons to cubic feet:
- Multiply 20 by 0.133681
- 20 × 0.133681 = 2.67362 cubic feet
- Result: 2.6736 ft³
Conversion Chart
The chart below shows gallons values from -18.0 to 32.0 converted to cubic feet. Negative numbers might represent volume reductions or removals, while positive numbers show volume increases. You can use this table by finding the gallon value in the left column and reading across to see its cubic equivalent.
| Gallons | Cubic Feet |
|---|---|
| -18.0 | -2.4063 |
| -15.0 | -2.0052 |
| -12.0 | -1.6042 |
| -9.0 | -1.2031 |
| -6.0 | -0.8021 |
| -3.0 | -0.4010 |
| 0.0 | 0.0000 |
| 3.0 | 0.4010 |
| 6.0 | 0.8021 |
| 9.0 | 1.2031 |
| 12.0 | 1.6042 |
| 15.0 | 2.0052 |
| 18.0 | 2.4063 |
| 21.0 | 2.8074 |
| 24.0 | 3.2083 |
| 27.0 | 3.6094 |
| 30.0 | 4.0104 |
| 32.0 | 4.2778 |
Related Conversion Questions
- How many cubic feet are in 7 gallons of liquid?
- What is the cubic equivalent of 7 gallons for volume measurements?
- Converting 7 gallons to cubic feet, what is the exact value?
- How do 7 gallons compare to cubic units in construction?
- Is 7 gallons more or less than 1 cubic foot?
- How to convert 7 gallons of water to cubic dimensions?
- What formula to use for turning 7 gallons into cubic feet?
Conversion Definitions
Gallons: Gallons is a unit of volume measurement mostly used in the United States to measure liquids. One US liquid gallon equals 128 fluid ounces or 3.78541 liters. It is commonly used to quantify fuel, water, and other fluids in everyday life, industry, and commerce.
Cubic: Cubic usually relates to cubic feet or cubic meters, units measuring volume in three-dimensional space. One cubic foot equals the volume of a cube with one-foot edges. Cubic units are used to express capacity or space in containers, rooms, or natural formations.
Conversion FAQs
Can gallons be converted to cubic meters?
Yes, gallons can be converted to cubic meters by using the appropriate conversion factor. One US gallon equals approximately 0.00378541 cubic meters. So, multiply the number of gallons by this factor to get cubic meters.
Why is the conversion factor for gallons to cubic feet not a whole number?
Because gallons and cubic feet are based on different base units and sizes: gallons are defined by fluid ounces (which relate to cubic inches), while cubic feet are much larger volumes defined by feet. The ratio between cubic inches and cubic feet is what produces a decimal factor.
Is the conversion different for UK gallons?
Yes, the UK (imperial) gallon is larger than the US gallon. One UK gallon equals about 1.20095 US gallons or 0.160544 cubic feet. Using the US gallon conversion factor with UK gallons would give incorrect results.
How precise is the conversion from gallons to cubic feet?
The conversion factor 0.133681 is precise based on exact definitions of gallons and cubic feet. However, actual measurements might vary slightly due to temperature, pressure, or measurement errors.
Can I use the conversion for dry gallons?
Dry gallons are less common and differ from liquid gallons; the conversion factor to cubic feet is different. The factor here applies only to US liquid gallons. For dry gallons, you need a different conversion factor.