That depends entirely on the substance that is in the gallons.
-- If the 150 gallons are full of water, then they weight about 1,253 pounds.
-- If they're full of gold, then they weigh about 23,812 pounds.
-- If the 150 gallons of space are empty, then they have no weight at all.
This would be 1200 pounds more or less. Pounds is a unit of mass/weight. Gallons is a liquid measure. They do not convert cleanly. The density of the liquid being measured can make a big difference. If the liquid is water, there is 8 pounds to a gallon.
That depends on what the tank is made of, and what it is filled with.
If it were made from Aluminum it would be very light, say 10 pounds; if Glass it would weigh around 350 pounds;, however if it were made from solid neutronium it would weigh a few hundred bazillion mega-tons.
If it was filled with air, it would be weigh no more than its own weight; with water it would add around 1,250 pounds; with Mercury it would weigh about 16,950 pounds.
So if it were say a 150 gallon fish tank, full of water and assorted fish & things, it would ring in around 1,800 pounds total.
If it's water, one gallon weighs about 8 pounds, so 150 gallons will weigh about 1200 pounds. 150 gallons of lead would weigh a lot more.
About 1,252.5 pounds @8.35 pounds per US gallon.
15,000 US gallons of water weighs approximately 125,250 pounds or 62.625 tons.
150 gallons of plain water weighs 1,251.75 pounds.
1,500 gallons of plain water weighs 12,518.11 pounds.
1,252.5 pounds at 8.35 lbs/gal.
124950 pounds @ 8.33 pounds per gallon.
72 US gallons weighs about 601.2 pounds.
Around 600 pounds ... It depends on the type of water ... just round it up to 600 :)
130 US gallons is about 1,085.5 pounds.
A gallon of water weighs about 8.35 lbs. so 37 x 8.35 = 308.95 lbs.
525 US gallons of water weighs about 4,378.5 pounds or 2,189.25 short tons. Each US gallon of water weighs approximately 8.34 pounds.
100 US gallons of water is about 835 pounds.
Four gallons of water is about 33.4 pounds.
350
950 gallons of plain water is 7,928.1 pounds.
344.4 pounds for 41.269 gallons of plain water.
608 US gallons of water is about 5,076.8 pounds.
15000
15000
1.4212 gallons of water weighs about 12 (11.86702) pounds.
3,740 US gallons of water weighs about 31,229 pounds.
11,000 US gallons of water weighs about 91,850 pounds.
212 gallons of water weighs 1,770.2 pounds.