Volume of a Gallon of Water in Cubic Feet

Volume Conversion Formula:

\[ V_{ft³} = \frac{1}{7.48} \approx 0.1337 \, ft³ \]

Volume in Cubic Feet:

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1. What is Volume of a Gallon of Water in Cubic Feet?

Definition: This calculator converts the volume of water from gallons to cubic feet.

Purpose: It helps in various applications like plumbing, aquarium sizing, water storage calculations, and engineering projects.

2. How Does the Calculator Work?

The calculator uses the conversion factor:

\[ 1 \, gallon = 0.133681 \, cubic \, feet \]

Formula: \[ V_{ft³} = Gallons \times 0.133681 \]

Explanation: One US liquid gallon is defined as exactly 231 cubic inches, and there are 1728 cubic inches in a cubic foot, giving the conversion factor.

3. Importance of Volume Conversion

Details: Accurate volume conversion is essential for:

Designing water storage systems
Calculating pipe capacities
Determining aquarium or pool volumes
Engineering and construction projects

4. Using the Calculator

Tips: Simply enter the number of gallons you want to convert to cubic feet. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Is this for US gallons or Imperial gallons?
A: This calculator uses US liquid gallons (1 US gal = 3.78541 liters). Imperial gallons are different (1 Imperial gal = 4.54609 liters).

Q2: Why is the conversion factor approximately 0.1337?
A: Because there are exactly 7.48052 gallons in one cubic foot (1/7.48052 ≈ 0.133681).

Q3: Does temperature affect the conversion?
A: The volume conversion is constant, but water density changes slightly with temperature.

Q4: How precise is this conversion?
A: The conversion factor is precise to six decimal places (0.133681) for most practical applications.

Q5: Can I convert cubic feet back to gallons?
A: Yes, multiply cubic feet by 7.48052 to get gallons.