1. What is Pool Capacity Calculation?

Pool capacity calculation determines the volume of water a swimming pool can hold, measured in gallons. For rectangular pools, this is calculated using the formula: length × width × depth × 7.5.

2. How Does the Calculator Work?

The calculator uses the rectangular pool formula:

Where:

• \( L \) — Length in feet
• \( W \) — Width in feet
• \( D \) — Depth in feet
• 7.5 — Conversion factor (cubic feet to gallons)

Explanation: The formula calculates the cubic volume of the pool and converts it to gallons using the standard conversion factor of 7.5 gallons per cubic foot.

3. Importance of Pool Capacity Calculation

Details: Knowing your pool's capacity is essential for proper chemical treatment, pump sizing, heating calculations, and general maintenance.

4. Using the Calculator

Tips: Enter pool dimensions in feet. Measure length and width at the water surface level. For depth, use the average depth if the pool has a slope.

5. Frequently Asked Questions (FAQ)

Q1: Why multiply by 7.5?
A: There are 7.48 gallons in one cubic foot of water. The formula uses 7.5 as a standard rounding for simplicity in pool calculations.

Q2: How do I measure depth for sloped pools?
A: For pools with varying depth, calculate average depth: (shallow end depth + deep end depth) ÷ 2.

Q3: Does this work for irregularly shaped pools?
A: This formula is specifically for rectangular pools. Oval, circular, and freeform pools require different calculation methods.

Q4: How accurate is this calculation?
A: The calculation provides a close estimate. Actual capacity may vary slightly due to pool shape details, fittings, and water level.

Q5: Can I use this for saltwater pools?
A: Yes, the volume calculation is the same regardless of water type. The result helps determine the appropriate amount of salt needed.