Gallons in Tank Calculator

Tank Volume Formula:

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

Tank Volume (gallons):

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1. What is a Gallons in Tank Calculator?

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

Purpose: It helps determine tank capacity for storage, aquariums, industrial applications, and other liquid containment needs.

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 of tank (inches)
\( W \) — Width of tank (inches)
\( H \) — Height of tank (inches)
231 — Conversion factor (cubic inches per gallon)

Explanation: The tank's volume in cubic inches is converted to gallons by dividing by 231 (since 1 gallon = 231 cubic inches).

3. Importance of Tank Volume Calculation

Details: Accurate volume calculation ensures proper sizing for storage needs, prevents overfilling, and helps with system design and maintenance.

4. Using the Calculator

Tips: Measure the internal dimensions of your tank in inches. Enter length, width, and height. 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: Does this work for cylindrical tanks?
A: No, this calculator is for rectangular tanks only. Cylindrical tanks require a different formula (π × r² × h).

Q3: Should I measure inside or outside dimensions?
A: Always use internal dimensions for accurate volume calculations, unless the tank walls are extremely thin.

Q4: How do I convert to liters?
A: Multiply gallons by 3.78541 to get liters. Our calculator shows gallons only.

Q5: Does this account for tank contents?
A: No, this calculates total capacity. Actual usable volume may be less depending on required air space or equipment inside.