how do i work out how many gallons my tank holds?

Question

it is 3ft by 2ft by 1ft3

Answer 1

http://www.fishlore.com/ConversionCalculator.htm

Go to the bottom of this link page..and enjoy :-)

Answer 2

You use length (times) width (times) height (divided by) 231. I think it's important to be able to do this without relying on web pages, as you have no idea if the web page has the formula correct or if it will even be there next time you need it. Plus it's less a pain to just have a calculator handy and figure it out right there as opposed to writing down the measurements and running to the computer, loading a web page, so on and so forth.

There's some bad information in this question. Many others here are talking about accounting for displacement, which is not only impossible but unnecessary. Whatever type of substrate you are using (gravel, sand, so on and so forth), some water will still find its way into it and there is no way to calculate how much. You can't account for things such as live rock because they are, by nature, unnatural nonsymmetric geographic shapes. It would take hours to calculate a single rock's total mass and then calculate its displacement value. By that same logic, fish and coral will displace water as well.

In the case of medicines, any medicine you purchase for your fish tank will account for what they believe are the "standard" displacement values. These medicines are somewhat rare anyways--most medicines state you should put the ill fish into a quarantine tank and treat it there.

Answer 3

If it's important to know the exact volume (dosing medication, for instance), measure the INSIDE of the tank - it makes a difference. Also figure that your gravel and decorations take up some of the room.

This link will do metric or English units:
http://www.aquaticcommunity.com/converter/volume-calculator.php

Answer 4

That's 56 gallons.


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Answer 5

http://www.aquanic.org/images/tools/volume.htm
Here is a web site address where you can use an on line calculator to find out. Don't forget about gravel or sand this will decrease the volume.

Answer 6

Convert the volume in litres!

Answer 7

you have a 40 gallon aquarium

Answer 8

Simple equation that doesn't require some web site to tell you. You multiply the length by the width by the depth (in inches)

(so L x W x D)

and then divide that number by 231. That will give you the total gallons your tank holds.

Your tank is just over 56 gallons. Meaning you probably bought a tank sold as a 55 gallon tank.