1. What is a Round Pool Volume Calculator?

Definition: This calculator estimates the volume of water in gallons needed to fill a round swimming pool based on its radius and depth.

Purpose: It helps pool owners, installers, and maintenance professionals determine the correct amount of water for filling or treating pools.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{gal} \) — Volume in gallons
• \( r \) — Radius of the pool (feet)
• \( D \) — Depth of the pool (feet)
• 7.48 — Conversion factor (cubic feet to gallons)

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

3. Importance of Pool Volume Calculation

Details: Accurate volume calculation is essential for proper chemical treatment, pump sizing, and heating calculations.

4. Using the Calculator

Tips: Measure the pool's radius (half of diameter) and average depth. For variable depth pools, use the average of shallow and deep ends.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure pool radius?
A: Measure the distance from center to edge, or measure diameter across the pool and divide by 2.

Q2: What if my pool has a sloped bottom?
A: Use the average depth (shallow end depth + deep end depth divided by 2).

Q3: Why 7.48 as the conversion factor?
A: There are 7.48052 gallons in one cubic foot of water.

Q4: Does this work for oval pools?
A: No, this calculator is for perfectly round pools only. Oval pools require a different formula.

Q5: How accurate is this calculation?
A: It's very accurate for perfect cylinders. Real-world pools may vary slightly due to shape imperfections.