The following tool is designed so that users can enter the dimensions of their reptile enclosures (in inches) and have them converted to gallons. This particular tool is geared toward calculating the volume found in hexagonal and cyndrical aquariums. This will help those who found a great bargain at a yard sale explain how many gallons their new prospective enclosure is.

Herp center also has a calculator for conventional aquarium sizes and custom enclosures. You can find it here: Gallon Converter.

Herp center also has a list of relatively common aquarium sizes and their weights. You can find the list here: Aquarium Sizes - Weights.