1. What is a Cylinder Volume Calculator (Gallons)?

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 liquid capacity of cylindrical containers like tanks, barrels, or pipes.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{gal} \) — Volume in gallons
• \( r \) — Radius of the cylinder (inches)
• \( h \) — Height of the cylinder (inches)
• \( \pi \) — Mathematical constant (~3.14159)
• 231 — Cubic inches per gallon (conversion factor)

Explanation: The formula calculates the cylindrical volume in cubic inches then converts to gallons.

3. Importance of Cylinder Volume Calculation

Details: Accurate volume calculations are essential for liquid storage, chemical processing, and industrial applications where precise measurements are critical.

4. Using the Calculator

Tips: Enter the radius and height in inches. Both values must be > 0. The result shows 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: Can I use this for metric measurements?
A: No, this calculator is specifically for inches to gallons. For metric, use cm to liters (1 liter = 1000 cm³).

Q3: Does this work for oval or rectangular tanks?
A: No, this only calculates volumes for perfect cylinders. Different formulas are needed for other shapes.

Q4: How accurate is the calculation?
A: The calculation is mathematically precise. Any inaccuracy would come from measurement errors of the cylinder dimensions.

Q5: What's a practical application of this?
A: Useful for determining fuel tank capacity, water storage volume, or chemical container sizing.