1. What is a Rectangular Tank Gallon Calculator?

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

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: The product of length, width, and height gives cubic inches, which is converted to gallons (1 gallon = 231 cubic inches).

3. Importance of Tank Volume Calculation

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

4. Using the Calculator

Tips: Enter the tank dimensions in inches. All values must be > 0. The result will be the internal volume in US gallons.

5. Frequently Asked Questions (FAQ)

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

Q2: Does this account for tank thickness?
A: No, this calculates internal volume. For external dimensions, subtract wall thickness from each dimension.

Q3: What about irregular shapes?
A: This calculator is for rectangular tanks only. Different formulas are needed for cylindrical or irregular shapes.

Q4: How accurate is this calculation?
A: It's mathematically precise for perfect rectangles. Real-world factors like internal fixtures may reduce actual capacity.

Q5: Can I use other units?
A: The formula requires inches. Convert other units to inches first (1 foot = 12 inches, 1 cm = 0.3937 inches).