Calculate Volume of Rectangle in Gallons

Volume Formula:

\[ V_{gal} = \frac{L \times W \times H}{231} \]

Volume (gallons):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Volume of Rectangle Calculator?

Definition: This calculator estimates the volume of a rectangular space in gallons based on its dimensions in inches.

Purpose: It helps determine liquid capacity of rectangular containers, tanks, or spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V_{gal} = \frac{L \times W \times H}{231} \]

Where:

\( V_{gal} \) — Volume in gallons
\( L \) — Length in inches
\( W \) — Width in inches
\( H \) — Height in inches

Explanation: The product of the three dimensions gives cubic inches, which is converted to gallons (1 gallon = 231 cubic inches).

3. Importance of Volume Calculation

Details: Accurate volume calculation is essential for liquid storage, aquarium sizing, chemical mixing, and industrial applications.

4. Using the Calculator

Tips: Enter all dimensions in inches. Measurements should be internal dimensions for containers. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 231?
A: 231 cubic inches equals 1 US liquid gallon, the standard conversion factor.

Q2: Can I use feet instead of inches?
A: Convert feet to inches first (1 foot = 12 inches) or modify the formula to use 0.004329 for cubic feet to gallons.

Q3: Does this work for irregular shapes?
A: No, this only calculates volume for perfect rectangular prisms. Use different formulas for other shapes.

Q4: How accurate is this calculation?
A: Mathematically precise for perfect rectangles. Real-world containers may have slightly different capacities due to manufacturing variations.

Q5: Can I calculate liters instead?
A: First calculate gallons, then multiply by 3.78541 to convert to liters.