Answer: A US gallon of water weighs 8.34 lbs or 3.78 kg at 62 °F (17 °C). An imperial gallon (UK) weighs 10.022 lbs or 4.546 kg, at its most dense temperature, which is 2.20456 lbs / L at 4 °C or 39 °F. Show
Ballpark Calculation (for all temperatures) 1 gallon is about 3.75 liters Three Different Units of GallonIt makes a difference which unit of gallon you are using. There are two US definitions of gallon. The US liquid gallon (most commonly used) is defined as 231 cubic inches, which is 3.785 liters, and weighs 8.344 lbs at its highest density. The US dry gallon is defined as 1/8th of a US bushel, which is 268.8025 cubic inches or 4.405 L. The weight of a US dry gallon is 9.711 lbs of water at its highest density. The UK gallon or imperial gallon originally was defined as 10 lbs of water, but the modern definition is exactly 4.54609 L or 10.02 lbs of water at its maximum density. Effect of Water Temperature on WeightCold water is more dense than ice or than warm water or liquid just above freezing. This is an unusual property of the substance, resulting from hydrogen bonding. So, a gallon of warm water would weigh slightly less than a gallon of cold water. The exact difference would depend on the temperatures in question, but it doesn’t affect the value by much. Of course, gravity affects weight too, so a gallon of water (or anything else) would weigh more on Jupiter than on Earth, while it would weigh less on the Moon than Earth. Easy Way to Remember the Weight of WaterWhile you’ll want to keep the exact volume definitions in mind for scientific calculations, for everyday use you can remember the weight of water using the simple rhyme: A pint’s a pound, the world round. The saying refers to the rough equivalence between 16 fluid ounces (a pint) and 16 ounces avoirdupois weight. A gallon is 4 quarts or 8 pints, so a gallon weighs approximately 8 lbs. As an experiment weigh a pint, or a liter, of water at home that is cold and then boil the water – now reweigh the same heated pint, or liter of water, and see the weight has gone down. LocationThe ‘where’ is more complex. Basically the altitude (pressure) also effects the weight as does gravity etc. But far too complex for our needs in this summary. Metric System (Liters or Litres)The metric system using liters (litres in UK and Europe) is fairly straightforward. At a temperature of 4 degrees Celsius (39.2ºF), exposed to standard atmospheric pressure of 101.325 kPa, 1cm³ of water is 1ml, and weighs 1 gram. 1 Liter of water (1000ml) weighs 1kg (1000g). Simple to remember that 1 liter of water weighs 1 kilogram. (at 4ºC). Gallons – the confusion begins!
In the US 1 gallon of water is 128 fluid ounces, or 3.785 liters. In the UK it is 160 fluid ounces, or 4.546 litres. It is best that we stick to comparing liters because just as the size of a gallon differs so does the size of a fluid ounce. (1 Imperial fluid ounce = 0.9607603 US fluid ounces.) The point to note is that a UK gallon is a little over 20% bigger than a US gallon. For example, a 50 Gallon Tank in UK would hold 60 US Gallons of water. Water WeightThe following two tables identify how much water weighs at a room temperature of 70°F / 21°C and 80°F / 26.7°C. Most aquariums at home will be within this range. Weight of water in pounds, stones and kilos for US gallonsGallons of waterPoundsStonesKilos1 gallon8.33 lb0.603.78 kg2 gallons16.66 lb1.197.56 kg3 gallons24.99 lb1.7911.33 kg4 gallons33.32 lb2.3815.11 kg5 gallons41.64 lb2.9718.89 kg6 gallons49.97 lb3.5722.67 kg7 gallons58.3 lb4.1626.45 kg8 gallons66.63 lb4.7630.22 kg9 gallons74.96 lb5.3534 kg10 gallons83.29 lb5.9537.78 kg15 gallons124.933 lb8.9256.67 kg20 gallons166.578 lb11.8375.56 kg29 gallons241.538 lb17.25109.56 kg30 gallons249.866 lb17.85113.34 kg40 gallons333.155 lb23.80151.12 kg50 gallons416.444 lb29.75188.90 kg60 gallons499.733 lb35.70226.67 kg100 gallons832.888 lb59.49377.79 kg120 gallons999.466 lb71.39453.35 kg150 gallons1249.332 lb89.24566.69 kgAt room temperature (70°F / 21°C)Weight of water in pounds, stones and kilos for US gallonsGallons of waterPoundsStonesKilos1 gallon8.318 lb0.593.773 kg2 gallons16.636 lb1.197.546 kg3 gallons24.953 lb1.7811.319 kg4 gallons33.271 lb2.3815.092 kg5 gallons41.589 lb2.9718.864 kg6 gallons49.907 lb3.5622.637 kg7 gallons58.224 lb4.1626.41 kg8 gallons66.542 lb4.7530.183 kg9 gallons74.86 lb5.3533.956 kg10 gallons83.178 lb5.9437.729 kg15 gallons124.767 lb8.9156.593 kg20 gallons166.356 lb11.8875.458 kg29 gallons241.216 lb17.23109.414 kg30 gallons249.533 lb17.82113.186 kg40 gallons332.711 lb23.77150.915 kg50 gallons415.889 lb29.71188.644 kg60 gallons499.067 lb35.65226.373 kg100 gallons831.778 lb59.41377.288 kg120 gallons998.134 lb71.30452.746 kg150 gallons1247.667 lb89.12565.932 kgAt room temperature (80°F / 26.7°C)In summary, multiple gallons of water weigh the amounts listed below:
Aquarium Dimensions and Typical Tank SizesIf you want to calculate the volume of your tank and need a quick calculator to see how many gallons or liters it holds go to our ‘Aquarium Calculator‘ page. Or check out our article that tells you the typical dimensions for various standard tank sizes HERE. Thomas McCready Thomas McCready is the co-founder of Technology Companies that developed many fish tank products such as aquarium heaters and pumps following his passion for keeping fish. What is the weight of 25 litre water?In principle - it's 2kg because the density of pure distilled water is normally taken to be 1kg/liter.
How many kg is 25l of water?Liter to Kilogram Conversion Table. Does 1 litre of water weigh 1 kg?One litre of liquid water has a mass of almost exactly one kilogram, due to the gram being defined in 1795 as one cubic centimetre of water at the temperature of melting ice.
How much does 20 Litres of water weigh?Assuming that the density of water is 1 gram per cubic centimeter, 1 liter of water weighs 1 kg and 75 liters weighs 75 kg. 1 kg is 2.20462 pounds. So, 75 kg would be 165.347 pounds = 165.4 pounds approx.
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How much does 25 litres of water weigh
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