About 8.35 pounds or 3.8 (3.787496) kilograms.
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An Imperial gallon of water has the mass 4,54609 kg.
Both are non-SI units and may create confusion.
About 8.35 pounds per US gallon.
Weight of 1 US Gallon of water = approx. 8.35 lb
3.75 US gallons of water is about 31.3125 pounds.
375 US gallons of water is about 3,131.25 pounds.
1 gallon (US) is 3.785 liters which weighs 3785 grams
5 US gallons is about 41.75 pounds.
About 8.35 pounds per US gallon.
A UK gallon weighs 4.54609kg (10.022413lbs) and a US gallon weighs 3.785412kg (8.345405lbs).
Pure water weights 8.33 pounds per US gallon. Mix any oil with it and it will weigh somewhat less, depending on the amount of oil.
The weight per US gallon of water at 25 C is 8.33 pounds [per gallon. 2 gallons of water would weigh 16.66 pounds plus the weight of the bucket itself.
124950 pounds @ 8.33 pounds per gallon.
About 1,252.5 pounds @8.35 pounds per US gallon.