equation for gallonage

[Chubbers]

What is the best equation for determining gallonage of a set of dimensions?

 

[Lupin]

Use this.
http://www.monsterfishkeepers.com/forums/calc.php

 

[Knowdafish]

Length X Width X Height (in inches) divided by 231 = the containers # of gallons. (231 cubic inches to the gallon)

 

[Chubbers]

Thank you both very kindly for your fast responses!

My 65 holds 67.42647593725143637 gallons

 

[Lupin]

Thank you both very kindly for your fast responses!

My 65 holds 67.42647593725143637 gallons

You don't see anyone say 53, 46, 67 or anything not divisible by 5 though. There'll always be a displacement taken up by the decorations, etc. You can't expect a full water volume to the rim as well.

 

[Chubbers]

I know thank you was just being exact LOL

 

[Toby_H]

I know thank you was just being exact LOL

Did you use internal or external dimensions? Since you're trying to be exact