Volume of 1 Gallon of Water in Cubic Feet

Volume Conversion Formula:

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

Volume in Cubic Feet:

Unit Converter ▲

Unit Converter ▼

From:	To:

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

Definition: This calculator converts gallons of water to cubic feet using the standard conversion factor.

Purpose: It helps in fluid volume conversions between gallons and cubic feet, useful in plumbing, hydrology, and engineering calculations.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V_{ft³} = \frac{Gallons}{7.48052} \]

Where:

\( V_{ft³} \) — Volume in cubic feet
\( Gallons \) — Volume in US gallons

Explanation: One cubic foot equals approximately 7.48052 US gallons, so dividing gallons by this factor converts to cubic feet.

3. Importance of Volume Conversion

Details: Accurate conversion between gallons and cubic feet is essential for water system design, tank sizing, and fluid measurements in different units.

4. Using the Calculator

Tips: Enter the number of gallons (default is 1) to get the equivalent volume in cubic feet. The result is precise to 6 decimal places.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 7.48052?
A: This is the exact conversion factor between US gallons and cubic feet (1 ft³ = 7.48052 gallons).

Q2: Does this work for imperial gallons?
A: No, this calculator uses US gallons. For UK imperial gallons, use 6.22883 instead.

Q3: How precise is this conversion?
A: The calculator uses the exact conversion factor, providing results with 6 decimal places.

Q4: What's the volume of 5 gallons in cubic feet?
A: Approximately 0.668403 ft³ (5 ÷ 7.48052).

Q5: Why would I need this conversion?
A: Useful when working with water systems where pipe dimensions are in feet but flow rates are in gallons.