The density of water is 1 gram per millilitre. That means this sample of water is 720 grams. Converting that to pounds, that is 1.587 pounds.
720mL = 24.3 US fl oz
The average water heater will have about 400 pounds of water in it.
180 ml
about 8.355 pounds
138 pounds!
63,844.1 pounds.
1417.8 pounds
30
A half gallon of water weighs approximately 4 pounds.
32oz of water weighs about 2.1 (2.0875) pounds.
705 gallons of water weighs about 5,883.2 pounds.
About 25 pounds for three US gallons of water.