Use our aquarium calculator to find out how many gallons or liters of water it will hold. Aquariums are containers, usually with at least one glass side, that are generally used as a fish tank, but are also used to raise reptiles or grow aquatic plants. Knowing the volume of the container is extremely important when choosing an aquarium and pet. Most fish and reptiles require a certain amount of living space and will not do well in an aquarium that is too small. Use our calculator to make sure the pet you choose has adequate living space, and will thrive in the environment you create.

Our aquarium volume calculator can also help you when trying to mix chemicals or replace the water in a tank. In order to keep fish or aquatic plants healthy, it is vital to keep the water clean. Sometimes it is required to add chemicals to the water in your fish tank. Make sure you know the volume of your aquarium to ensure proper mixture and protect the life of your pet. The ecosystem inside an aquarium is often extremely sensitive and slight changes can harm whatever you have living inside.

Aquariums come in several shapes such as: rectangular, cylindrical, and hexagonal. We have included each of these shapes in our aquarium calculator to make it easier for you to calculate the volume. Simply select the proper shape for your aquarium and the calculator will provide the form fields required to figure the volume of that particular shape. You can calculate the volume using gallons or liters depending on which unit of measurement you use.