need to know how LONG it is.
If the water is 6 ft wide and 18 inches deep, then there are
5.61 gallons of water for every inch of length.
30.55 gallons (rounded) for every inch the water in the tub is deep.
The aquarium would have a volume of 2200 cubic inches. One cubic inch is 0.0043290 liquid gallons, so 2200*0.0043290 = 9.52381 gallons.
6.23377 US gallons.
Approx 3437 Imperial gallons.
A round pool 30 feet wide and 52 inches deep can hold a maximum of 22,700 gallons of water.
16 and 7/8
There are about 33.7 gallons in a 3' by 1' by 1'6" aquarium.
At 7.48 gallons per cubic foot that is 3.14x30x30/4x52 x7.48 /12 = 22,900 gallons
There are 27,154 gallons of water in one acre of land that is one inch deep.
19.64 US gallons.
10.38961 gallons (rounded)
A aquarium that size could hold about 50 gallons of water. Remember when stocking your aquarium that, as a rule of thumb, when keeping a freshwater aquarium you should have about one inch of fish for every two gallons until it cycles; then you can go with one inch of fish per gallon. If you plan on setting up a saltwater tank, which is much more difficult to set-up and maintain, go with 1 inch of fish for every four gallons for the first six months; then one inch of fish for every two gallons. If keeping goldfish you should have about 1 inch of fish for every four gallons until the tank cycles; then one inch of fish for every two gallons.