Skip to main content

Rectangle / Square Pool Volume

The Rectangle / Square calculator figures out the total water volume of any pool with straight, right-angled sides. This is one of the most common pool shapes and uses a straightforward industry-standard formula.

Drag the slider to compare the input form and the calculated result.

Form
Result
← FormResult →

The Formula​

The calculator uses the standard industry formula for rectangular and square pools:

Length × Width × Average Depth × 7.48 = Volume in Gallons

The 7.48 multiplier converts cubic feet into gallons. FlowBeacon applies this automatically — you just enter your measurements.

Inputs​

Enter the following measurements to get your result:

  • Length — The longest side of the pool
  • Width — The shorter side of the pool
  • Shallow Depth — The depth at the shallow end of the pool
  • Deep Depth — The depth at the deepest end of the pool

FlowBeacon automatically calculates the average depth from your shallow and deep values. All measurements should be entered in feet. The calculator returns the volume in gallons, liters, and cubic feet.