Gallons in a Rectangular Tank Calculator

Volume Formula:

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

Volume (gallons):

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1. What is a Rectangular Tank Volume Calculator?

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

Purpose: It helps determine liquid capacity for tanks, aquariums, containers, and other rectangular vessels.

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
231 — Cubic inches per gallon (conversion factor)

Explanation: The formula calculates cubic inches first, then converts to gallons using the standard conversion factor.

3. Importance of Volume Calculation

Details: Accurate volume calculation ensures proper sizing for liquid storage, chemical dosing, and system design.

4. Using the Calculator

Tips: Measure the internal dimensions of your tank in inches. All values must be > 0.

5. Frequently Asked Questions (FAQ)

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

Q2: Can I use feet instead of inches?
A: Yes, but first convert feet to inches (1 foot = 12 inches) or adjust the formula to use 0.004329 gallons per cubic inch.

Q3: Does this work for irregular shapes?
A: No, this only works for rectangular prisms. Other shapes require different formulas.

Q4: How accurate is this calculation?
A: It's mathematically precise for perfect rectangles. Real-world tanks may have slightly different capacities due to manufacturing tolerances.

Q5: What about tank thickness?
A: For external dimensions, subtract twice the wall thickness from each dimension to get internal measurements.