Pool Volume Formula:
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Definition: This calculator estimates the volume of a pool in gallons based on measurements in inches.
Purpose: It helps pool owners and professionals determine water volume for proper chemical treatment and filling.
The calculator uses the formula:
Where:
Explanation: The formula calculates cubic inches of water and converts to gallons (1 gallon = 231 cubic inches).
Details: Accurate volume measurement ensures proper chemical dosing, pump sizing, and heating requirements.
Tips: Enter pool length, width, and average depth in inches. For irregular pools, calculate sections separately.
Q1: How do I measure average depth?
A: Measure shallow end depth and deep end depth, then average them: (shallow + deep) / 2.
Q2: What if my pool isn't rectangular?
A: For circular pools, use π × radius² × depth / 231. For oval pools, use π × length × width × depth / (4 × 231).
Q3: Why 231 cubic inches per gallon?
A: This is the standard US liquid gallon volume defined as exactly 231 cubic inches.
Q4: How accurate is this calculation?
A: Very accurate for rectangular pools. For freeform pools, it provides a good estimate.
Q5: Should I round up the result?
A: Yes, it's recommended to round up to ensure you have enough chemicals and water capacity.