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Pool Volume Formula:
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The pool volume formula calculates the total water capacity of a rectangular pool in gallons. It takes into account the pool's length, width, and average depth, then converts cubic feet to gallons using the conversion factor of 7.48 gallons per cubic foot.
The calculator uses the pool volume formula:
Where:
Explanation: The formula first calculates the cubic footage of the pool (length × width × depth), then converts this to gallons by multiplying by 7.48 (the number of gallons in one cubic foot of water).
Details: Knowing your pool's volume is essential for proper chemical treatment, pump sizing, heater sizing, and general maintenance. Accurate volume calculations ensure you add the correct amount of chemicals and operate equipment efficiently.
Tips: Measure your pool's length and width at their longest and widest points. For depth, measure the shallow end and deep end, then average them. All values must be in feet and greater than zero.
Q1: How do I measure average depth for a sloping pool?
A: Add the depth of the shallow end to the depth of the deep end, then divide by two. For example: (3 feet + 8 feet) ÷ 2 = 5.5 feet average depth.
Q2: What if my pool isn't rectangular?
A: Different formulas exist for circular, oval, and irregular pools. This calculator is specifically for rectangular pools.
Q3: Why is 7.48 used in the formula?
A: There are 7.48 gallons in one cubic foot of water. This conversion factor is standard for pool calculations in the US.
Q4: How accurate does my measurement need to be?
A: For chemical dosing, measurements should be as precise as possible. Small errors in measurement can lead to significant volume differences in large pools.
Q5: Can I use this for above-ground pools?
A: Yes, as long as the pool is rectangular. Measure the actual water dimensions, not the pool frame.