Tank Volume Formula:
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Definition: This calculator computes the volume of a rectangular tank in gallons based on its dimensions in inches.
Purpose: It helps engineers, designers, and homeowners determine the capacity of rectangular tanks, aquariums, or containers.
The calculator uses the formula:
Where:
Explanation: The calculator multiplies the three dimensions to get cubic inches, then divides by 231 to convert to gallons.
Details: Accurate volume calculations are essential for proper system design, chemical dosing, storage capacity planning, and regulatory compliance.
Tips: Measure the internal dimensions of your tank in inches. Enter length, width, and height (all must be > 0). The result shows capacity in US gallons.
Q1: Why divide by 231?
A: 231 cubic inches equals 1 US gallon, the standard conversion factor.
Q2: Can I use feet instead of inches?
A: No, this calculator requires inches. For feet, multiply dimensions by 12 first.
Q3: Does this work for cylindrical tanks?
A: No, use our Cylindrical Tank Calculator for round tanks.
Q4: How accurate is this calculation?
A: It's mathematically precise for perfect rectangles without internal obstructions.
Q5: What about tank thickness?
A: Use internal dimensions only. For external measurements, subtract wall thickness.