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Swimming Pool Capacity Formula:
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Swimming pool water capacity refers to the total volume of water a pool can hold, measured in gallons. Knowing your pool's capacity is essential for proper chemical treatment, filtration system sizing, and maintenance planning.
The calculator uses the standard pool capacity formula:
Where:
Explanation: The formula calculates the cubic volume of the pool and converts it to gallons using the standard conversion factor of 7.48 gallons per cubic foot.
Details: Accurate pool capacity calculation is crucial for proper chemical dosing, determining appropriate pump and filter sizes, estimating water replacement costs, and ensuring efficient pool operation and maintenance.
Tips: Measure your pool's length and width in feet. For average depth, measure the shallow end and deep end depths, then calculate their average. Enter all values as positive numbers with up to two decimal places.
Q1: How do I calculate average depth for irregular pools?
A: For pools with varying depths, take measurements at several points and calculate the mathematical average, or use (shallow end depth + deep end depth) ÷ 2.
Q2: Does this formula work for circular or oval pools?
A: No, this formula is for rectangular pools. Circular pools use π × radius² × average depth × 7.48.
Q3: Why is the conversion factor 7.48?
A: There are 7.48 gallons in one cubic foot of water, which is the standard conversion used in pool calculations.
Q4: How accurate is this calculation?
A: The calculation provides a close estimate. Actual capacity may vary slightly due to pool shape variations, steps, and other features.
Q5: Can I use this for above-ground pools?
A: Yes, the formula works for both in-ground and above-ground rectangular pools.