Pond Liner Size Table: Liner length by Pond length
Reference table of liner length for Pond Liner Size across a range of pond length values — exact, engine-computed figures you can read off at a glance.
Pond Liner Size Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Liner length
4.60
- Liner width
- 3.60
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Pond Liner Size Calculator
The Pond Liner Size Calculator works out your liner length, along with 1 related figure in an instant. Enter pond length, pond width and pond depth and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the pond length.
- Enter the pond width.
- Enter the pond depth.
- Enter the edge overlap per side.
- Read off your liner length, together with liner width — the calculator updates automatically, with no button to press.
Formula
The Pond Liner Size Calculator uses the formula:
Liner length = Pond length + 2 × Pond depth + 2 × Edge overlap per side
Worked example
For example, with pond length of 3 m, pond width of 2 m, pond depth of 0.5 m and edge overlap per side of 0.3 m, the liner length is 4.60.
| Pond length | 3 m |
|---|---|
| Pond width | 2 m |
| Pond depth | 0.5 m |
| Edge overlap per side | 0.3 m |
| Liner length | 4.60 |
|---|---|
| Liner width | 3.60 |
Results are estimates for educational use, not professional advice.
Frequently asked questions
Add twice the depth and twice the edge overlap to each pond dimension. A 3×2 m pond, 0.5 m deep with 0.3 m overlap needs a 4.6×3.6 m liner.
The liner must drop down one side and up the other, so the full depth is added at both edges.
About 0.3 m per side anchors the liner under rocks or soil and prevents slippage.
Stepped planting shelves use a little more material, so round up or add extra overlap for complex shapes.
The Pond Liner Size Calculator uses the formula: Liner length = Pond length + 2 × Pond depth + 2 × Edge overlap per side. For example, with pond length of 3 m, pond width of 2 m, pond depth of 0.5 m and edge overlap per side of 0.3 m, the liner length is 4.60.
Enter the pond length. Enter the pond width. Enter the pond depth. Enter the edge overlap per side. Read off your liner length, together with liner width — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Pond Liner Size: Formula, Steps & Examples
Learn how to calculate Pond Liner Size — the formula explained step by step, with worked examples and a free calculator to check your answer.