about 8 lbs 13 oz
A liter of pure water weighs at most 1 kilogram (at 4 degrees Centigrade). This is about 2.2 pounds. Water at higher temperatures is less dense and will weigh slightly less.
1 litre of water is approximately 2 pounds, 3 and 1/4 ounces
The pound is a unit of weight and the liter is a unit of volume. A liter of iron weighs many pounds while a liter of air weighs very little.
That is about 0.9 of a litre
1 liter = 1.05668821 US quarts
If each cup is 250 milliliters (mL) then four cups is a liter (L). These are the "exact" amounts: In the United States, 1 liter is equal to 4.226 752 838 cups. According to the metric system, 1 liter is equal to 4 cups. In Canada and the United Kingdom, 1 liter is equal to 4.399 384 966 cups.
4 liter
2 liters is equal to 2070 grams. 2070 grams is equal to 4.56 pounds. In each 2 liter you are getting a little extra.
pour the water into the 9 liter pail and pour some water into the 4 liter pail after pour the water into the liter 7 pail the pour with your imagination 3 quarters liter into the 4 liter and and it to the first 4 liter you poured.
Four gallons of water is about 33.4 pounds.
You could fill the 7-liter bucket and pour water into the aquarium until it is full, but that would make too much sense. If you really need to have three liters, fill the 7-liter bucket (which, although unmarked, will be larger than the 4-liter bucket) and pour it into the 4-liter bucket. When the 4-liter bucket is full, there will be three liters remaining in the 7-liter bucket.
4 lbs = 4 pounds.