Pool Volume Calculator
Estimate how many US gallons your pool holds. Volume drives almost every other pool number, so it is worth measuring carefully.
How this is calculated
1 US gallon = 231 cubic inches and 1 cubic foot = 1,728 cubic inches, so 1 cubic foot = 7.48051948051948 gallons.
- Rectangular: length × width × average depth × 7.48051948051948
- Round: π × (diameter ÷ 2)² × average depth × 7.48051948051948
- Oval: (π ÷ 4) × length × width × average depth × 7.48051948051948
Real pools have curved walls, benches and slopes, so treat every result as an estimate.
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