What size tank is this

[raven63630]

I have a tank that is 18 1/2"x12"x48" how do I figure how many gallons this is?

Thanks

 

[spiderwoman]

Without Googling, I'd say it's smaller than 55. My 55 is 21 high.

 

[scottminot]

Looks to me like you have a 45 gallon tank. I forgot the formula to figure out volume though. I'm sure someone will post it by the time I remember it.

 

[stormd]

like l x w x h x .0043 will tell you how many gallons it comes out to be 45.820 or 45 gallon tank

 

[raven63630]

Thanks,
that should make a decent sump for my 125.

 

[espkh9]

you could also use legnth x width x height divided by 231 = how many gallons your tank is.