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Water, Tank & Plumbing Calculators

Pool Volume Calculator

Swimming pool volume for rectangular, round or sloping-floor pools, with chemical dosing basics.

Enter values

Results update as you type.

Result

Pool volume

48,000 litres

In cubic metres
48
In US gallons
12,680
Surface area
32 m²
Average depth
1.5 m
Chlorine for 2 ppm shock
96 g
Turnover time at 10 m³/h
4.8 hours
Time to fill at 20 L/min
40 hours

About the Pool Volume Calculator

Swimming pool volume for rectangular, round or sloping-floor pools, with chemical dosing basics.

Also known as: swimming pool gallons, pool water volume, how many litres in my pool, pool capacity.

How to use this calculator

  1. Enter pool shape, floor and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

volume = surface area × average depth

Worked example

Using the values pre-filled in the calculator above:

  • Pool shape: Rectangular
  • Length = 8 m
  • Width = 4 m
  • Floor: Sloping
  • Shallow end depth = 1 m
  • Deep end depth = 2 m

the calculator returns:

  • Pool volume: 48,000 litres
  • In cubic metres: 48
  • In US gallons: 12,680
  • Surface area: 32 m²