tropical fish tanks

[oxo]

Can anyone please tell me the correct capacity of water in an aquarium 48"x15"x18" { LxBxH}. I have had so many different answers ranging from 38 galls up to 48galls,it is important that I get the right capacity so I can treat the water accordingly.PLEASE HELP

[YvonneM]

Just been onto a calculating website and it comes out at 46.7 gallons

[hammerman]

Ok the way to work out its capacity in UK gallons is

L in feet x W in feet x D in feet x 6.25

So your tank is 4 x 1.3 x 1.6 feet = 8.32

X 6.25 = 52

Minus 10-15% for displacement of gravel, rocks etc and you'll have

47 gallons