Pool Volume Calculator: Oval (Gallons)
Gallons in an oval (elliptical) pool.
Formula
Gallons = π × (L/2) × (W/2) × average depth × 7.48052.
Worked example
Inputs: Length = 30 ft; Width = 15 ft; Average depth = 4.5 ft.
| Gallons | 11,897 |
|---|---|
| Liters | 45,036 |
FAQ
What about kidney or freeform pools?
Approximate as an oval or split into rectangles and circles; results are estimates.
Sources
- Geometry (volume/area formulas); no external constant needed
- NIST: 1 US gallon = 231 cubic inches (7.48052 gal per cubic foot)
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Last reviewed 2026-10-11.