1. What is Pipe Volume in Gallons?

Definition: This calculator determines the internal volume of a cylindrical pipe in gallons based on its inner radius and length.

Purpose: It helps plumbers, engineers, and technicians calculate fluid capacity in pipes for various applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{gal} \) — Volume in gallons
• \( r \) — Inner radius of pipe (inches)
• \( L \) — Length of pipe (inches)
• \( 231 \) — Conversion factor (cubic inches to gallons)

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

3. Importance of Pipe Volume Calculation

Details: Accurate volume calculations are essential for system design, chemical dosing, flow rate calculations, and capacity planning.

4. Using the Calculator

Tips: Measure the inner radius (half of inner diameter) and length 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, which is the standard conversion factor.

Q2: Can I use diameter instead of radius?
A: Yes, but you'll need to divide diameter by 2 first (radius = diameter/2).

Q3: Does this work for any pipe material?
A: Yes, the calculation is material-independent as long as you use the inner dimensions.

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

Q5: Can I calculate for multiple pipe sections?
A: Calculate each section separately and sum the volumes.