This page contains three calculators to help you estimate the volume of your pond or aquarium in litres.
You will only need to use one of them. The third calculator is for people who already know the volume of their pond in gallons.
Enter your data in the fields marked "*", then click on the "Calculate" or "Convert" button.
Pond and Aquarium Volume Calculator - From Dimensions in Metres
Pond and Aquarium Volume Calculator - From Dimensions in Feet and Inches
If you have measured your pond or aquarium in inches, just use the inches column, you do not need to convert to feet. Entering 1'6" or just 18" will work equally well.