Above Ground Pool Gallon Calculator

Pool Volume Formula:

\[ V_{gal} = \pi \times r^2 \times D \times 7.48 \]

Pool Volume (gallons):

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1. What is an Above Ground Pool Gallon Calculator?

Definition: This calculator estimates the water volume in gallons for circular above-ground pools based on radius and depth.

Purpose: It helps pool owners and installers determine the correct amount of water needed to fill a pool.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V_{gal} = \pi \times r^2 \times D \times 7.48 \]

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 measurement 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 slope-bottom pools, use the average depth.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure pool radius?
A: Measure across the pool (diameter) and divide by 2. Measure in feet for this calculator.

Q2: What if my pool isn't perfectly circular?
A: This calculator is for circular pools. For oval pools, use (π × length × width × depth × 7.48)/4.

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

Q4: Should I fill to the very top?
A: Typically fill to about 6 inches below the rim to account for displacement when people enter.

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