Goldfish Tank Size Calculator

How many goldfish can you keep in your current tank, or getting information before you buy one? We will help you with that. Calculate size of your tank / aquarium by inputting height, width and depth either in cm or inches and see what size of aquarium you have and how many common, comet or fantail Goldfish you can keep in it!

If the calculator show you zero goldfish, well that is because we do not recommend keeping goldfish in tanks less than 20 Gallons or 75 Litres.

Happy fishkeeping!