Above Ground Pool 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 Calculator?

Definition: This calculator estimates the water volume in gallons for circular above-ground pools based on their dimensions.

Purpose: It helps pool owners and installers determine the correct water volume for proper chemical treatment and pump sizing.

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
\( r \) — Pool radius (feet)
\( D \) — Pool depth (feet)
7.48 — Conversion factor (cubic feet to gallons)

Explanation: Calculates the cylindrical volume in cubic feet then converts to gallons.

3. Importance of Pool Volume Calculation

Details: Accurate volume measurement ensures proper chemical dosing, correct pump/filter sizing, and accurate heating calculations.

4. Using the Calculator

Tips: Measure the pool's radius (half of diameter) and average depth (if slope-bottomed). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure pool depth for slope-bottom pools?
A: Average the shallow end and deep end measurements (e.g., (3ft + 5ft)/2 = 4ft).

Q2: What if my pool isn't perfectly circular?
A: For oval pools, use the average radius. For irregular shapes, consult a professional.

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

Q4: Does this account for water displacement?
A: No, this calculates total capacity. Actual water volume will be slightly less accounting for people and equipment.

Q5: How accurate is this calculation?
A: Within 5% for standard circular pools when measurements are precise.