Cylinder Gallon Volume Calculator

Cylinder Volume Formula:

\[ V_{gal} = \frac{\pi \times r^2 \times h}{231} \]

Volume: gallons

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1. What is a Cylinder Gallon Volume Calculator?

Definition: This calculator estimates the volume of a cylinder in gallons based on its radius and height measurements in inches.

Purpose: It helps professionals and DIYers determine the liquid capacity of cylindrical containers like tanks, pipes, or barrels.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V_{gal} = \frac{\pi \times r^2 \times h}{231} \]

Where:

\( V_{gal} \) — Volume in gallons
\( r \) — Radius in inches
\( h \) — Height in inches
231 — Cubic inches per gallon conversion factor

Explanation: The formula calculates the cylinder's cubic volume then converts it to gallons using the standard conversion factor.

3. Importance of Cylinder Volume Calculation

Details: Accurate volume calculations are essential for liquid storage, chemical processing, hydraulic systems, and many industrial applications.

4. Using the Calculator

Tips: Enter the radius and height in inches (measured from inside the container for capacity). 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: Can I use centimeters instead of inches?
A: No, this calculator requires inches since the conversion factor is based on cubic inches to gallons.

Q3: Does this work for oval or rectangular tanks?
A: No, this calculator is specifically for perfect right circular cylinders.

Q4: How do I measure radius if I only know diameter?
A: Simply divide the diameter by 2 to get the radius.

Q5: Is this for US gallons or Imperial gallons?
A: This calculator uses US gallons (231 cubic inches). Imperial gallons are different (277.42 cubic inches).