Pool Gallons Calculator
Calculate the approximate number of gallons in a rectangular, circular, or oval pool based on its dimensions.
Published by:
isCalculator Editorial Team
Was this calculator helpful?
How to use this tool?
This calculator estimates the water volume of a rectangular, circular, or oval pool in US gallons. All measurements must be in feet.
- Select the pool shape from the dropdown menu.
- Enter the required dimensions for your shape:
- Rectangular: Length, Width, and Average Depth
- Circular: Diameter and Average Depth
- Oval: Length, Width, and Average Depth
- Click "Calculate Gallons" to see the result.
The result shows the estimated gallons and the formula used. If any field is missing or invalid, an error message will appear.
Previous Results
| Result | Inputs | Date |
|---|
Frequently Asked Questions
The calculator provides an estimate based on standard formulas. Actual volume may vary due to pool shape irregularities, steps, and slopes.
We use 7.481 gallons per cubic foot, which is the standard conversion for water.
Yes, it works for rectangular, circular, and oval above-ground pools. For irregular shapes, results are approximate.