Pool Volume and Size Calculator
Free pool tool

Pool Volume and Size Calculator

Pick a shape and enter the length, width and depth to see the surface area and an estimate of gallons.

These tools give planning-level estimates from typical values. They are not quotes, designs or engineering, and results depend on your actual site, soil, depth, access, local rules and conditions. Only a site visit can confirm what a project needs, and we give you a written scope and price before any work begins.

How it works

Four quick steps.

  1. 01

    Pick a shape

    Rectangle, oval, round, free-form or L shape.

  2. 02

    Enter the size

    Length, width and the shallow and deep depths.

  3. 03

    Read the volume

    Surface area and an estimate of gallons.

  4. 04

    Use it in planning

    Volume sets pump, heater and chemical needs.

Tips

  • Free-form pools are estimated with a shape factor, so treat the result as a guide.
  • Average depth matters more than the deepest point.
  • Volume drives heater size, pump flow and chemical doses.
Questions

About this tool.

Is this exact?

No. It is a planning estimate. Steps, benches and curves change the real volume, and we confirm it in design.

How do I measure a free-form pool?

Use the longest length and the widest width, then pick free-form so a shape factor is applied.

Why does volume matter?

Equipment, heating and chemistry are all sized around it.

Free design consultation

Ready to plan your dream pool?

Call us and we will walk your yard, talk through ideas and show you what is possible, with a clear plan and a written scope.

Call NowFree Consult