1. What is a Round Swimming Pool Volume Calculator?

Definition: This calculator estimates the water volume in gallons for a round swimming pool based on its radius and average depth.

Purpose: It helps pool owners and professionals determine the correct amount of water needed for filling or the proper dosage of pool chemicals.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V_{gal} \) — Volume in gallons
• \( r \) — Radius of the pool (feet)
• \( D \) — Average depth of the pool (feet)
• 7.48 — Conversion factor (gallons per cubic foot)

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 ensures proper chemical treatment, pump sizing, and heating requirements for your pool.

4. Using the Calculator

Tips: Measure the pool's radius (half of diameter) and average depth (shallow end + deep end ÷ 2). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure average depth?
A: Add the shallow end depth to the deep end depth, then divide by 2.

Q2: What if my pool has a sloping bottom?
A: Use the average depth calculation as described above.

Q3: Why 7.48 in the formula?
A: There are 7.48 gallons in one cubic foot of water.

Q4: Can I use diameter instead of radius?
A: Yes, but divide diameter by 2 to get radius before entering.

Q5: How accurate is this calculation?
A: Very accurate for perfectly round pools. Irregular shapes require different formulas.