1. What is a Cylinder 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:

Where:

• \( V_{gal} \) — Volume in gallons
• \( r \) — Radius of the cylinder (inches)
• \( h \) — Height of the cylinder (inches)
• \( 231 \) — Conversion factor (cubic inches per gallon)

Explanation: The formula calculates the cylinder's volume in cubic inches (πr²h) then converts it to gallons by dividing by 231.

3. Importance of Cylinder Volume Calculation

Details: Accurate volume calculations are essential for liquid storage, chemical processing, fuel management, and industrial applications.

4. Using the Calculator

Tips: Enter the radius and height in inches. Both values must be > 0. The result will be displayed 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 different units?
A: This calculator specifically uses inches. For other units, convert to inches first or use a different calculator.

Q3: Does this work for horizontal cylinders?
A: This formula is for vertical cylinders. Horizontal cylinders require a more complex calculation.

Q4: How accurate is this calculation?
A: It's mathematically precise for perfect cylinders. Real-world containers may have variations.

Q5: What's a practical application?
A: Calculating fuel tank capacity, determining water storage volume, or sizing pipes for fluid transport.