Tank size question

[ca_carson31]

I was wondering if anyone knows how to measure the actual gallon capacity of a tank without using buckets to fill. There has to be a formula to use. I have a tank that I believe to be a 55gal but I am not completely sure. I had the tank made in the philippines and I was told that the tank size was a 50gal but all the reading that I have done here makes me believe that is an odd size of a tank.
Can someone please help?
Thanks Chris

 

[jester]

LxWxH in inches diveded by 231

 

[jagermeister]

Make sure you measure the L and W and H on the INSIDE of the tank.

 

[jester]

inside will give actual capicity, outside will give you what tanks are sold buy.

 

[escape2thewater]

Yea, what jester said! LxWxH / 231....on the inside
Kyle

 

[ca_carson31]

Thanks for all the help!!!!!!
Chris

 

[lesleybird]

And.....when dosing medicines and treatments don't forget to allow for displacement of water by rocks and sand! Lesley