Pool Volume Formula:
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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.
The calculator uses the formula:
Where:
Explanation: The pool dimensions are multiplied together to get cubic feet, then converted to gallons.
Details: Accurate volume calculation ensures proper chemical treatment, pump sizing, and heating efficiency.
Tips: Measure pool dimensions carefully. For irregular shapes, calculate as multiple rectangular sections. All values must be > 0.
Q1: How do I measure average depth?
A: Measure shallow end depth and deep end depth, then average them: (shallow + deep) ÷ 2.
Q2: What about non-rectangular pools?
A: For circular pools, use π × radius² × depth × 7.48. For oval pools, use π × ½ length × ½ width × depth × 7.48.
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: Very accurate for rectangular pools. Actual volume may vary slightly due to pool shape variations.
Q5: Does this include water in pipes/filter?
A: No, add approximately 100-500 extra gallons depending on your pool's plumbing system.