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Pool Volume CalculatorHome & Property

Pool Volume Calculator

Estimate gallons, liters and fill time for rectangular, oval and circular pools using average depth.

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What Is the Pool Volume Calculator?

The Pool Volume Calculator estimates water volume for rectangular, oval and circular pools. It averages shallow and deep depth, reports cubic feet, US gallons and liters, and estimates fill time from an entered gallons-per-minute flow.

How It Works

Choose the plan shape, enter the interior water dimensions and shallow and deep water depths, then enter measured fill flow. Use the result as a starting estimate for filling and maintenance planning.

When to Use It

Use it when manufacturer volume is unavailable or the water depth differs from a nominal pool size. Steps, benches, slopes and freeboard mean the actual filled volume can be lower.

Frequently Asked Questions

How Is Average Depth Calculated?
The calculator averages the entered shallow and deep depths. This is suitable for a roughly uniform slope but not a complex multi-level pool floor.
Can I Use This For Chemical Dosing?
Use it only as a starting estimate. Add chemicals conservatively according to product instructions and verify with appropriate water testing.

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