The weight of any volume of water will depend on the gravitational force acting upon it. 57 cubic feet of water would weigh nothing in a spaceship, for example.
2.5 cubic feet of water weighs about: 156 pounds.
More info needed. How much does 0.4 cubic feet of what weigh? Air? Lead? Water? Dirt?
The weight of 2.25 cubic feet of water is approx 4495 pounds-force (lbf).
Roughly 72 pounds.
Depends on the size of the aquarium. Water weights 10 pounds per gallon.
If the weight is 62.5, then it weighs 62.5
1 248.538 214 8 Pounds
a cubic ton
10pounds
100 cubic feet = 2831.7 litres.
There are about 17,210,000 gallons of water in 2.3 million cubic feet.
One cubic centimeter of water would fit into that cup, and it would weigh 1 gram.