Updated at: 27-09-2023 - By: John Lau

Do you ever find yourself wondering, ‘How much does 5 gallons of water weigh?’ It’s a common question, and understanding the answer is vital for activities like boating or camping.

The 5-gallon jug of water, an essential item in many households and outdoor trips, usually weighs around 41.7 pounds. This blog post will not only accurately explain how this calculation is made but also offer you expert guidance on handling such weight safely and efficiently.

Ready to lift the lid off this fascinating science fact? Let’s dive right in!

Weight of 5 Gallons of Water

How Many Pounds Is 5 Gallons Of Water Expert Approved (1)

Calculating the weight of 5 gallons of water is straightforward, as water has a density of 8.34 pounds per gallon.

Calculating the weight

Calculating the weight of five gallons of water involves a straightforward mathematical process. Let’s break it down:

  1. Begin by taking note of the density of water, which stands at 0.9970 g/cm³ at room temperature.
  2. Convert this density into pounds per gallon, resulting in approximately 8.34 pounds for each gallon.
  3. Multiply this value by the number of gallons you have, in our case is 5, to find the total weight.
  4. The calculation becomes: 8.34 pounds/gallon x 5 gallons = 41.7 pounds.
  5. Understand that most five – gallon jugs of water typically weigh around 41.7 pounds when filled.
  6. Be aware that a five – gallon bucket filled with water will usually weigh closer to 42 pounds due to the additional weight from the container itself.

Density of water

Water has a density of 0.9970 g/cm³ at room temperature. This means that for every cubic centimeter, water weighs approximately 0.9970 grams. When we talk about the weight of water, we can calculate it based on its volume.

For example, five gallons of water weigh around 41.7 pounds or 18.9 kilograms. It’s important to note that the weight of other substances, such as paint, milk, gas, or sand in five-gallon quantities may differ from the weight of water due to their different densities and compositions.

In solid form, like ice, the density of water increases compared to liquid water. So if you have five gallons of ice instead of liquid water, it would weigh approximately 53 pounds due to the greater density of ice.

Converting gallons to pounds

To convert gallons to pounds, you can use a simple calculation. Multiply the number of gallons by the weight of one gallon of water. Since one gallon of water weighs approximately 8.34 pounds, you can calculate the weight of any number of gallons by multiplying it by 8.34. For example, 5 gallons of water would weigh about 41.7 pounds (5 x 8.34 = 41.7). This conversion allows you to easily determine the weight of different amounts of water in pounds.

Variations in Weight

Frozen water and different containers can impact the weight of 5 gallons of water.

Frozen water

Frozen water, such as ice, weighs more than liquid water due to its greater density. Five gallons of frozen water would weigh approximately 53 pounds, which is heavier than the weight of the same volume in its liquid form.

This is because the freezing process causes water molecules to arrange themselves in a more compact structure, resulting in increased density and weight. So if you have five gallons of frozen water, be prepared for it to weigh significantly more than when it’s in its liquid state.

Different containers

Different containers can affect the weight of five gallons of water. For example, a 5-gallon jug of water typically weighs around 41.7 pounds when filled. However, the weight may vary slightly depending on the type and material of the container.

A 5-gallon bucket filled with water weighs approximately 42 pounds, while a different container made from a heavier material could weigh more. It’s important to consider the weight of the container itself when calculating or lifting five gallons of water to avoid any potential strain or injury.

Tips for Handling and Storing 5 Gallons of Water

How Many Pounds Is 5 Gallons Of Water Expert Approved (2)

Lift and transport the 5-gallon container with proper technique to prevent strain or injury. Store the water in a cool, dry place away from direct sunlight and chemicals.

Lifting and transporting

Lifting and transporting a 5 gallon jug of water requires proper technique to avoid injury. Here are some tips to help you handle and move it safely:

  • Use your legs and not your back when lifting the jug.
  • Keep your back straight and bend your knees to lift the jug.
  • Hold the jug with both hands, keeping it close to your body.
  • Take small steps while walking to maintain balance.
  • If the jug is too heavy for you to lift alone, ask for assistance.
  • Utilize a dolly or cart with wheels to transport the jug over longer distances.
  • Be cautious when navigating stairs or uneven surfaces, as jugs can become unstable.

Storing for extended periods

Storing 5 gallons of water for extended periods requires proper handling and precautions. Here are some tips to keep in mind:

  1. Use sealed containers: Store the water in airtight containers to prevent contamination and evaporation.
  2. Choose food-grade containers: Ensure that the containers you use are specifically designed for storing liquids, preferably made of BPA-free plastic or stainless steel.
  3. Keep away from direct sunlight: Store the water in a cool, dark place to prevent the growth of algae or bacteria.
  4. Rotate your stock: If you’re storing water long-term, it’s important to periodically check and replace it to ensure freshness.
  5. Label and date your containers: Properly label each container with the date of storage to easily track its freshness and rotation schedule.
  6. Consider adding a preservative: If storing water for an extended period, you may want to add a water preservative approved for long-term storage.


In conclusion, the weight of a 5-gallon jug of water is typically around 41.7 pounds. However, variations in weight can occur depending on factors such as the temperature and container used.

It’s important to handle and store 5 gallons of water properly to avoid any accidents or spills.