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Pool Volume Formula:
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The pool volume calculation determines how many gallons of water your pool holds. This is essential for proper chemical treatment, pump sizing, and maintenance. The formula calculates volume for rectangular pools by multiplying length, width, average depth, and the conversion factor (7.48 gallons per cubic foot).
The calculator uses the pool volume equation:
Where:
Explanation: The formula calculates the cubic volume of the pool (length × width × depth) and converts it to gallons using the standard conversion factor.
Details: Knowing your pool's exact volume is crucial for proper chemical dosing, filter operation, and heater sizing. Incorrect volume can lead to chemical imbalances or equipment problems.
Tips: Measure your pool's length and width at their longest points. For depth, average the shallow and deep end measurements if your pool has a slope. Enter all values in feet.
Q1: What if my pool isn't rectangular?
A: This calculator is for rectangular pools. For circular pools, use π × radius² × depth × 7.48. For irregular shapes, divide into rectangular sections.
Q2: How do I measure average depth?
A: Add the shallow end depth to the deep end depth, then divide by 2. For pools with multiple depth changes, take several measurements and average them.
Q3: Why is 7.48 the conversion factor?
A: There are 7.48052 gallons in one cubic foot of water. We round to 7.48 for simplicity.
Q4: How accurate is this calculation?
A: Very accurate for rectangular pools with uniform depth. For irregular shapes or complex designs, professional measurement may be needed.
Q5: Does this work for above-ground pools?
A: Yes, the formula works for any rectangular pool regardless of construction type (in-ground or above-ground).