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Pond Calculator

Sketch out a plan of how you want the pond to look and calculate the width and length of your pond.

Pond Liner Calculator

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Pond volume (in litres)
Pond liner length (in metres)
Pond liner width (in metres)
How to calculate the pond liner size
Learn the easy way to calculate it.

The accompanying diagram shows a pond with a maximum length of 5 metres and a maximum width of 4 metres. The final measurement you will need is the maximum depth of your pond, the diagram to the right shows a maximum pond depth of 1 metre.

Liner length = max length + (2 x max depth) + 1 (for overlap)
Liner width = max width + (2 x max depth) + 1 (for overlap)

So for a 5 meter by 4 meter pond it would be:

Pond liner length = 5+2+1 = 8 metres
Pond liner width = 4+2+1 = 7 metres

You'd need a pond liner that is 8 metres x 7 metres

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