Building tool

Pond Liner Calculator

Find the liner dimensions, surface area, overlap, and approximate water volume for a pond.

Runs in your browser
Pond Liner Calculatorupdates live
Result
Liner length
23 ft
Liner width
19 ft
Liner area
437 sq ft
Approximate pond volume
2,199 gal
Underlayment area
480.7 sq ft

The volume uses a shape allowance for sloped sides. Add more liner for shelves, waterfalls, irregular edges, and anchoring details.

How to use this pond liner calculator

  1. Measure the project, enter the dimensions in the units shown, and add the waste, spacing, coverage, or material settings that apply.
  2. Review the calculated totals, units, and assumptions. Check the inputs and units before relying on the result.
  3. Change one input at a time to compare another case, then copy or save the result you plan to use.

About this pond liner calculator

Pond Liner Calculator helps you find the liner dimensions, surface area, overlap, and approximate water volume for a pond. The input and result appear together for easy comparison.

You can also use it to compare results after changing one input.

Example

A 10 by 8 foot pond that is 3 feet deep needs extra liner on both sides for depth and edge overlap.

Common uses

  • find the liner dimensions, surface area, overlap, and approximate water volume for a pond
  • compare results after changing one input
  • save an estimate for planning or comparison