Rectangular Pool Volume Formula:
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Pool volume calculation determines the total water capacity of a swimming pool in gallons. Knowing your pool's volume is essential for proper chemical treatment, filtration, and maintenance.
The calculator uses the rectangular pool volume formula:
Where:
Explanation: The formula calculates cubic feet (L × W × D) then converts to gallons by multiplying by 7.48 (gallons per cubic foot).
Details: Accurate volume measurement is crucial for proper chemical dosing, pump sizing, filter maintenance, and heater operation. Incorrect volume can lead to water quality issues or equipment problems.
Tips: Measure length and width at the longest points. For depth, average the shallow and deep end measurements if your pool has a slope. All values must be positive numbers.
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 accurate is this calculation?
A: It's accurate for perfect rectangles. For pools with complex shapes or varying depths, consider professional measurement.
Q3: Why is pool volume measured in gallons?
A: Most pool chemicals and equipment specifications use gallons as the standard unit in the United States.
Q4: Should I round my measurements?
A: Measure to the nearest inch (0.08 feet) for best accuracy, especially for larger pools.
Q5: How often should I recalculate my pool volume?
A: Recalculate if you make significant changes to your pool's shape, depth, or size.