How Much Do 55 Gallons of Water Weigh? * The Homesteading Hippy

How much does 5 gallons of paint weigh?

A five-gallon bucket of paint weighs much more than a single gallon, typically between 40 and 60 pounds. However, the exact weight depends on the paint type and brand. For example, a five-gallon can of latex paint has a density of 11.2 lbs per gallon, which is a mass of 56 pounds.

How much does a 5 gallon bucket weigh full?

Five U.S. gallons, therefore, weighs 41.7 lbs. How many inches around is a 5 gallon bucket? Standard 5-gallon pails made by United States Plastic Corporation are 14.5 inches high, 11.91 inches in diameter at the top and 10.33 inches in diameter at the bottom.


How Much Gallon Bucket Of Water Weigh

How Much Gallon Bucket Of Water Weigh
How Much Gallon Bucket Of Water Weigh

5 Gallons of pure water weighs 42.7 pounds because all gallon of water equals 8.35 pounds. How Much Does a Gallon of Water Weigh? At the boiling point, all gallon of water has a weight of only 7.997 pounds. The Cubin foot of room temperature water weighs 62.6 pounds. However, the saltwater has a good weight because of the minerals that are dissolved in it. Each gallon of seawater contains about 4.6 ounces of salt, which is about 3.6 percent of its complete weight. A Cubin foot of saltwater weighs about 65 pounds because salt water is thick, it is able to buoy objects up with the gooiest force, so abject float slightly most better in saltwater.

A US Liquid Gallon is a capacity Measure in the US. The United States Gallon is legally defined as 20 Cubic Inches. The United States Gallon equals 4 to 5 Quits 3.786 Liters which makes it lighter that United States Dry Gallon and Imperial Gallons.

The Us Dry Gallon is a Measurement Tool normally used to determine Agriculture Commodities like Grains, Berries, Grapes, and Apple. Us people are using mostly Imperial Gallon and it is legally defined as 277.5 inches Cubic Inches. The Imperial Gallon equals to 4.81 Quarts or 4.55609 Liters. The Imperial Gallon is highest than both the United States Liquid Gallon and Dry Gallon. The Imperial Gallon weight around 10 to 11 lbs at a temperature of 63 Degrees Fahrenheit.

How do we know what a gallon of water weighs?

The gallon is a measurement of volume, it is, therefore, necessary to convert the volume measurement to one of weight, which in the case in question is pounds.

It would be an easy task to put a gallon of water on to a set of scales and measure the weight, but all measurements have already been quantified as part of a standardized system of weight and measures.

We are fortunate in today’s age that it doesn’t take too long to find detailed information regarding measures, and how these can be converted.

When the conversion of gallons to pounds is done, it easy to look up the figure that shows how much a pound of water weighs, although for those for whom the devil is in the detail there are formulas for converting everything.

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How Much Does a Gallon of Water Weigh?

We mentioned above that one gallon of water weighs 8.345 pounds at 39.2 °F when the density of water is exactly equal to 1.0 g/cm³. But, since the density of water fluctuates with the temperature, the weight of a gallon of water changes too.

So, just how much does a gallon of water weigh then? One gallon of water weighs between 8.288489 and 8.345404 pounds, depending on the temperature. The table below shows the weight at various temperatures.

Weight of one US gallon of water at different temperatures
Temperature( °F / °C ) Weight of One Gallon of Water Weight of Five Gallons of Water
32° / 0° 8.34432 lbs 41.721598 lbs
39.2°/4.0° 8.345404 lbs 41.72702 lbs
40°/4.4° 8.345321 lbs 41.726605 lbs
50°/10° 8.343318 lbs 41.71659 lbs
60°/15.6° 8.337643 lbs 41.688215 lbs
70°/21° 8.328881 lbs 41.64405 lbs
80°/26.7° 8.317781 lbs 41.588905 lbs
90°/32.2° 8.304512 lbs 41.52256 lbs
100°/37.8° 8.288489 lbs 41.442445 lbs

How Much Does 5 Gallons of Water Weigh?

Trying to figure out how much a 5-gallon bucket of water weighs? At room temperature, five gallons of water weighs 41.64 pounds, but at 32.2 °F it weighs 41.727 pounds.

You can use the calculator or weight chart above for the full five-gallon weight range.

Working on a plumbing project? Use our pipe volume calculator to calculate the volume and weight of the water in your plumbing system.

How much does water weigh?

People used to go by the rule that a liter of water weighed a kilogram. Simple, huh? The beauty of the metric system is in its tidiness: 1cm³ of water is 1ml, and weighs 1g. So 1L of water (1000ml) weighs 1kg (1000g).

And wouldn’t it be wonderful if it really was that straightforward?

Atmospheric Pressure and Gravity

Pressure and gravity are also the factors that play a vital role while calculating the exact weight of a gallon of water or any other object as well.

If you are on the moon with a gallon of water, it will feel much lighter than you being on Earth. Similarly on a larger planet like Jupiter where gravitational pull is stronger, a gallon of water will be much heavier.

This shift in gravity can also be observed on the earth surface but to a very limited extent.

  • On a place which is closer to the earth core gravity of earth acts stronger.
  • On mountains which are obviously away from the core, gravity is weaker.

Gallon of water will weigh more on areas closer to the core of earth than on hilly areas.

Effects of Water Temperature on Weight

Temperature is one of the ways to measure the amount of energy in water. A higher temperature means higher energy and vice versa. Higher water energy causes water molecules to vibrate, pushing their neighbors to the side. Thus, the density of water decreases with the increase in energy of water. Since a gallon is a set amount of space, the number of water molecules in that space will fluctuate with the changing energy levels. So, a gallon of warm water weighs slightly less than a gallon of cold water with the difference depending on the temperatures in question. For instance, at 500 Fahrenheit, a gallon of water would weigh approximately 8.3 pounds while at 2000 Fahrenheit a gallon of the same water would weigh 8.03 pounds. However, the value of water remains the same despite the temperature changes since the temperature does not affect the composition of water.

Does the elevation of my house affect the weight of water?

Since weight is a property that is related to a specific mass within a gravitational field the greater the distance a mass travels from the source of the field the less effect the field has on the mass. The reduction would continue as the distance increases until the mass, although still the same will weigh nothing.

Apparently, the distances that water can be taken to a higher elevation on earth does show a reduction in weight that can be measured, however not necessarily felt.

I wonder if this is true since every week, I visit the store to buy 55 gallons of drinking water in gallon containers. This task calls for the water to be handled and moved a lot of times.

  1. Load it into my trolley from the shelf
  2. Unload it at the checkout
  3. Load it back into the trolley
  4. Transfer it into my car to drive to my mountain home
  5. Unload it from my car and carry into my utility room

Gallon Conversion to other units:

In order to convert Gallon into liters, the following are the formulae for both US and Imperial gallon.

For US standard

 Volume in Liters = (volume in gal) x (3.785 L/gal)

For imperial gallon

Volume in Liters = (volume in gal) x (4.5460 L/gal)

Now we can easily convert this into weight as for water 1 liter ≈ 1 kg ≈ 2.2 lbs.

Hence, UK or Canadian gallon of water weighs…..

4.546 × 2.2 = 10.0012 pounds

4.546 × 1 =  4.546 kg

US gallon of water weighs

3.785 × 2.2 = 8.327 pounds

3.785 × 1 = 3.785 kg

5 UK gallons of water weigh

5 × 10.0012 = 50.006 pounds

5 × 4.546 = 22.73 pounds

5 US gallons of water weigh

5 × 8.327 = 41.635 pounds

5 × 3.785 = 18.925 kg

Related Documents

Water Weight

The 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 gallons
Gallons of water Pounds Stones Kilos
1 gallon 8.33 lb 0.60 3.78 kg
2 gallons 16.66 lb 1.19 7.56 kg
3 gallons 24.99 lb 1.79 11.33 kg
4 gallons 33.32 lb 2.38 15.11 kg
5 gallons 41.64 lb 2.97 18.89 kg
6 gallons 49.97 lb 3.57 22.67 kg
7 gallons 58.3 lb 4.16 26.45 kg
8 gallons 66.63 lb 4.76 30.22 kg
9 gallons 74.96 lb 5.35 34 kg
10 gallons 83.29 lb 5.95 37.78 kg
15 gallons 124.933 lb 8.92 56.67 kg
20 gallons 166.578 lb 11.83 75.56 kg
29 gallons 241.538 lb 17.25 109.56 kg
30 gallons 249.866 lb 17.85 113.34 kg
40 gallons 333.155 lb 23.80 151.12 kg
50 gallons 416.444 lb 29.75 188.90 kg
60 gallons 499.733 lb 35.70 226.67 kg
100 gallons 832.888 lb 59.49 377.79 kg
120 gallons 999.466 lb 71.39 453.35 kg
150 gallons 1249.332 lb 89.24 566.69 kg
At room temperature (70°F / 21°C)
Weight of water in pounds, stones and kilos for US gallons
Gallons of water Pounds Stones Kilos
1 gallon 8.318 lb 0.59 3.773 kg
2 gallons 16.636 lb 1.19 7.546 kg
3 gallons 24.953 lb 1.78 11.319 kg
4 gallons 33.271 lb 2.38 15.092 kg
5 gallons 41.589 lb 2.97 18.864 kg
6 gallons 49.907 lb 3.56 22.637 kg
7 gallons 58.224 lb 4.16 26.41 kg
8 gallons 66.542 lb 4.75 30.183 kg
9 gallons 74.86 lb 5.35 33.956 kg
10 gallons 83.178 lb 5.94 37.729 kg
15 gallons 124.767 lb 8.91 56.593 kg
20 gallons 166.356 lb 11.88 75.458 kg
29 gallons 241.216 lb 17.23 109.414 kg
30 gallons 249.533 lb 17.82 113.186 kg
40 gallons 332.711 lb 23.77 150.915 kg
50 gallons 415.889 lb 29.71 188.644 kg
60 gallons 499.067 lb 35.65 226.373 kg
100 gallons 831.778 lb 59.41 377.288 kg
120 gallons 998.134 lb 71.30 452.746 kg
150 gallons 1247.667 lb 89.12 565.932 kg
At room temperature (80°F / 26.7°C)


  1. U.S. Department of the Interior, Bureau of Reclaimation, Ground Water Manual, from The Water Encyclopedia, Third Edition, Hydrologic Data and Internet Resources, 1977, Edited by Pedro Fierro, Jr. and Evan K. Nyler, 2007,
  2. U.S. Department of the Interior, US Geological Survey, Water Density,
  3. National Center for Biotechnology Information, PubChem Compound Summary for CID 962, Water, 2021,


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