1. What is a Cylinder Volume Calculator in 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 in inches
• \( h \) — Height in inches
• 231 — Conversion factor (cubic inches per gallon)

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.

4. Using the Calculator

Tips: Enter the radius and height in inches. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 231?
A: 231 cubic inches equals 1 US liquid gallon, the standard conversion factor.

Q2: Can I use centimeters instead of inches?
A: No, this calculator requires inches. For cm, convert to inches first (1 inch = 2.54 cm).

Q3: Does this work for horizontal cylinders?
A: Only for vertical cylinders. Horizontal cylinders require more complex calculations.

Q4: What's the most common use for this calculator?
A: Determining liquid capacity of storage tanks, water heaters, and chemical drums.

Q5: How accurate is this calculation?
A: It's mathematically precise for perfect cylinders. Real-world tanks may have variations.