Gallon Calculator by Dimensions

Volume Formulas:

\[ V_{gal} = \frac{L \times W \times H}{231} \text{ (rectangular)} \] \[ V_{gal} = \frac{\pi \times r^2 \times h}{231} \text{ (cylindrical)} \]

Shape:

Length:

inches

Width:

inches

Height:

inches

Volume (gallons):

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1. What is a Gallon Calculator by Dimensions?

Definition: This calculator estimates the volume in gallons based on the dimensions of either a rectangular or cylindrical container.

Purpose: It helps convert linear measurements into liquid volume measurements for various applications including tank sizing, liquid storage, and container capacity.

2. How Does the Calculator Work?

The calculator uses one of these formulas based on shape:

\[ V_{gal} = \frac{L \times W \times H}{231} \text{ (rectangular)} \] \[ V_{gal} = \frac{\pi \times r^2 \times h}{231} \text{ (cylindrical)} \]

Where:

\( V_{gal} \) — Volume in gallons
\( L \) — Length (inches, rectangular)
\( W \) — Width (inches, rectangular)
\( H \) — Height (inches, rectangular)
\( r \) — Radius (inches, cylindrical)
\( h \) — Height (inches, cylindrical)

Explanation: The divisor 231 converts cubic inches to gallons (1 gallon = 231 cubic inches).

3. Importance of Volume Calculation

Details: Accurate volume calculations ensure proper liquid storage, chemical mixing ratios, and tank capacity planning.

4. Using the Calculator

Tips:

Select the container shape (rectangular or cylindrical)
Enter all required dimensions in inches
All values must be positive numbers

5. Frequently Asked Questions (FAQ)

Q1: Why 231 cubic inches per gallon?
A: This is the standard US gallon volume defined as 231 cubic inches.

Q2: How do I measure diameter vs radius?
A: Radius is half the diameter. Measure across the circular opening (diameter) and divide by 2 for radius.

Q3: Can I use this for metric measurements?
A: No, this calculator is specifically for inches to US gallons. For metric, use centimeters and liters (1 liter = 1000 cm³).

Q4: Does this account for container thickness?
A: No, measurements should be internal dimensions. For external measurements, subtract container wall thickness.

Q5: How accurate is this calculation?
A: It's mathematically precise for perfect geometric shapes. Real-world containers may vary slightly.