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Estimate rectangular, circular, or oval pool volume in litres, cubic metres, and US gallons from measured dimensions and average depth.
FormulaVolume = surface area × average depth
Calculated result
Result—Enter valid values
A
How the calculation works
Choose the pool shape and unit system, then enter measured dimensions and average water depth. The calculator applies the corresponding geometric area formula and returns multiple volume units.
B
Limits and responsible use
Steps, benches, sloped walls, irregular curves, and changing depth reduce geometric accuracy. Use meter readings or construction drawings when dosing accuracy is critical.
Formula reference
The calculation and interpretation are presented with their assumptions so the result can be independently checked.
View CDC pool chemical safety guidance ↗