417.5 pounds for 50 US gallons.
75 gallons of water weighs about 626.25 pounds.
About 250 pounds for 30 US gallons.
3,000 gallons of water weigh almost exactly 25,000 pounds
Five Imperial ( i.e. British ) gallons of water weigh fifty pounds. Six and a quarter US gallons of water weigh fifty pounds.
On Earth, 179.532 gallons of water weighs 1,497.6 pounds. (rounded)
Approximately 13,360 pounds.
10 gallons of water weighs 83.45 lb.
350 US gallons of water weighs almost three tons, about 2,922.5 pounds.
225.6 pounds (rounded)
One gallon of water weighs about 8.33 pounds. So 67,230 gallons would weigh around 560025.9 lb.
Water weighs approximately 8 pounds per gallon, so 5 gallons weigh about 40 pounds.