Pool Volume Calculator
Rectangular Pool
Circular Pool
Formula
Rectangle: L × W × AvgDepth × 7.481 gal/ft³ | Circle: π × r² × D × 7.481
Frequently Asked Questions
How many gallons is a typical pool?
Small above-ground (12ft round, 4ft deep): ~3,400 gallons. Medium (15×30, avg 5ft): ~16,800. Large (20×40, avg 5.5ft): ~33,000. Olympic size: ~660,000 gallons.
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