Pond Calculator

Estimate the water volume of a rectangular pond.

Length

Width

Average depth

Water volume 7.481

Volume 28.317

Formula: gallons = L × W × depth × 7.48052

Step-by-step with your numbers:

1. Values used:

2. Length = 1

3. Width = 1

4. Average depth = 1

6. Water volume = 7.481

7. Volume = 28.317

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Estimate pond volume for stocking fish, dosing treatments and sizing pumps.

The math behind it

Volume (ft³) = length × width × average depth; × 7.48052 for US gallons.

12×8 ft, 2 ft deep → 1,437 gallons.

Irregular shape?

Approximate with the average length, width and depth.