Pond Liner Calculator
Calculate the required size of EPDM or PVC pond liner based on pond dimensions.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Pond Liner Calculator
This calculator determines the required liner dimensions (length, width, and area) for a rectangular pond. All measurements must be in feet except Overlap, which is in inches.
- Enter Pond Length (ft) – The longest side of your pond.
- Enter Pond Width (ft) – The shorter side of your pond.
- Enter Pond Depth (ft) – The maximum depth of the pond.
- Enter Overlap (inches) – Extra liner material to extend beyond the pond edges (default is 12 inches).
Results update automatically as you type:
- Liner Length = Length + 2 × Depth + Overlap (converted to feet)
- Liner Width = Width + 2 × Depth + Overlap
- Liner Area = Liner Length × Liner Width (in square feet)
All inputs must be positive numbers. Overlap can be zero. Invalid entries show a red border and dashes in results.
Previous Results
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Frequently Asked Questions
Measure the maximum length, width, and depth of your pond. Add twice the depth to each dimension plus overlap for the liner size.
Typically 12-24 inches of overlap is recommended to secure the liner edges.
This calculator assumes a rectangular pond. For irregular shapes, use the longest and widest points.