Rectangular Tank Capacity Calculator Gallons

Tank Volume Formula:

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

Tank Capacity (gallons):

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1. What is a Rectangular Tank Capacity Calculator?

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

Purpose: It helps engineers, designers, and homeowners determine the liquid capacity of rectangular containers.

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 calculator multiplies the three dimensions to get cubic inches, then converts to gallons.

3. Importance of Tank Capacity Calculation

Details: Accurate capacity calculations ensure proper system design, material selection, and regulatory compliance for liquid storage.

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: There are exactly 231 cubic inches in one US liquid gallon (standard conversion factor).

Q2: What if my measurements are in feet?
A: Convert feet to inches first (1 foot = 12 inches) or use a different calculator that accepts feet.

Q3: Does this account for tank thickness?
A: No, use internal dimensions for capacity calculations. For external dimensions, subtract wall thickness.

Q4: How accurate is this calculation?
A: It's mathematically precise for perfect rectangles. Irregular shapes require different formulas.

Q5: Can I use this for other liquids?
A: Yes, the volume calculation is the same, though weight will vary by liquid density.