1. What is a Pool Calculator for Gallons?

Definition: This calculator estimates the volume of water in gallons needed to fill a rectangular pool based on its dimensions.

Purpose: It helps pool owners and 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 of water (gallons)
• \( L \) — Length of pool (feet)
• \( W \) — Width of pool (feet)
• \( D_{avg} \) — Average depth of pool (feet)
• \( 7.48 \) — Conversion factor (gallons per cubic foot)

Explanation: The pool dimensions are multiplied together to get cubic feet, then converted to gallons.

3. Importance of Pool Volume Calculation

Details: Accurate volume calculation ensures proper chemical treatment, pump sizing, and heating requirements.

4. Using the Calculator

Tips: Measure pool length and width at their longest points. For depth, average the shallow and deep end measurements.

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: Does this work for irregular shaped pools?
A: This calculator is for rectangular pools. For irregular shapes, use more complex calculations.

Q3: Why 7.48 gallons per cubic foot?
A: This is the standard conversion factor (1 cubic foot = 7.48052 gallons).

Q4: How accurate is this calculation?
A: It's accurate for rectangular pools. For rounded measurements, expect ±5% variance.

Q5: Should I round up the result?
A: Yes, it's recommended to round up to ensure you have enough water for complete filling.