Pond & Aquarium Volume Calculator
Quickly estimate how much water your pond or aquarium holds. Choose your preferred measurement unit, select the shape and enter the dimensions to calculate the approximate water volume.
1 Choose your measurement unit
2 Choose the shape
3 Enter your measurements
Estimated water volume
0 litresHow to measure
Measure the internal length, width and water depth of your pond or aquarium. For ponds with sloping or uneven sides, use an average depth to give a more realistic estimate. For aquariums, measure the actual water depth rather than the full external height of the tank where possible. Irregular ponds can be divided into smaller sections and the individual volumes added together.
Water volumes are approximate and do not allow for gravel, substrate,
decorations, rocks, filters or other items that displace water.
*Circulation requirements vary depending on whether the system is a pond,
aquarium, filtration setup, waterfall or heavily stocked environment.
