How does the Pool Volume Calculator work?

Rectangular pool: Length × Width × Average depth × 1,000 = litres Then: Oval pool: Length × Width × π/4 × Average depth × 1,000 Then: Average depth = (shallow end depth + deep end depth) / 2 Then: For curved or irregular pools, break into rectangles or use the pool's own measurement.

Can you give an example of how to use the Pool Volume Calculator?

Example: Input Pool 8m × 4m · avg depth 1.5m gives a result of 48,000 litres (48 m³) (8×4×1.5×1000 = 48,000 L).

Is the Pool Volume Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Pool Volume Calculator?

Our Pool Volume Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

Mathematics

Pool Volume Calculator

Tank Volume Calculator

Radius (in)

Height (in)

Fill level % (optional)

A pool volume calculator computes the water capacity of a swimming pool in litres, gallons, or cubic metres. This is essential for dosing chemicals correctly — the right amount of chlorine depends entirely on water volume.

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Did You Know?

Properly dosing pool chemicals requires knowing volume to the nearest thousand litres. Under-dosing chlorine causes algae; over-dosing irritates skin and fades swimwear.

References

›Swimming pool — Wikipedia

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Pool Volume Calculator

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