Calculator For Swimming Pool Volume
Calculate the volume of water in your swimming pool in gallons or liters. Supports rectangular, circular, and oval pool shapes.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Swimming Pool Volume Calculator
- Select Pool Shape – Choose Rectangular, Circular, or Oval from the dropdown. The relevant input fields will appear.
- Enter Dimensions (in feet) – Fill in the required fields for your shape:
- Rectangular: Length and Width.
- Circular: Diameter.
- Oval: Long Length and Short Width.
- Enter Depths (in feet) – Provide the Shallow End Depth and Deep End Depth. The calculator uses the average depth.
- Choose Output Unit – Select Gallons or Liters.
- Click "Calculate Volume" – The result will display below along with a step-by-step formula breakdown.
Note: All inputs must be in feet (imperial units). The calculator automatically converts cubic feet to gallons or liters based on your selection.
Previous Results
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Frequently Asked Questions
For rectangular pools, volume = length × width × average depth. For circular pools, volume = π × (diameter/2)² × average depth. For oval pools, volume = π × (long length/2) × (short width/2) × average depth. Then convert cubic feet to gallons (multiply by 7.48052) or liters (multiply by 28.3168).
Average depth is the mean of the shallow end depth and deep end depth: (shallow + deep) / 2.
This calculator supports rectangular, circular, and oval shapes. For irregular shapes, consider approximating with a combination of shapes.