How Much Does a 5-Gallon Water Jug Weigh?

The water in a full 5-gallon jug weighs about 42 pounds. The U.S. Geological Survey uses 8.34 pounds per gallon, so 5 gallons comes to 41.7 pounds, before you add the weight of the bottle itself.

That number matters more than it sounds. It decides whether you can comfortably lift a bottle onto a cooler, how many full jugs a shelf can hold, and whether a bottom-load cooler is worth it for your home or office.

The math, by bottle size

Using the USGS figure of 8.34 pounds per gallon:

• 3-gallon bottle: 3 × 8.34 = about 25 pounds of water.
• 5-gallon bottle: 5 × 8.34 = about 41.7 pounds of water.

Add the weight of the bottle on top of that. Bottle weight is also why our FAQ notes that glass bottles are not carried up stairs, and that in walk-up buildings drivers carry plastic bottles up one flight only.

How that compares with safe lifting guidance

The National Institute for Occupational Safety and Health (NIOSH) publishes a lifting equation used to assess manual lifting at work. In its Ergonomic Guidelines for Manual Material Handling, NIOSH says the maximum weight to be lifted with two hands, under ideal conditions, is 51 pounds, and that six variables reduce that limit below 51 pounds.

Lifting a jug onto a top-load cooler is rarely ideal. You lift from the floor, raise the bottle to chest height, turn it upside down and hold it away from your body while you line up the neck. Those are exactly the kinds of factors (height, reach, twisting and grip) that lower the recommended limit. So a bottle that weighs less than 51 pounds can still be an awkward lift for many people.

Making it easier

• Consider a bottom-load cooler. The bottle slides into a cabinet at the base and is never lifted overhead. We offer both top-load and bottom-load units; see our FAQ or contact us to ask which suits you.
• Choose 3-gallon bottles. At roughly 25 pounds of water, they are a much lighter lift.
• Lift with two hands, close to your body. NIOSH’s ideal case is a compact two-handed lift held close in, without twisting.
• Store full bottles low. A jug on the floor or a low shelf is easier and safer to move than one stacked high.
• Use a bottle pump. A pump that sits on top of the jug lets you dispense without lifting the bottle onto anything; our set-up page has a video showing how to fit one.
• Ask for a hand. Two people turning a full bottle onto a top-load cooler is easier than one person doing it alone.

If you are setting up a cooler for the first time, our water cooler set-up page has videos for setting up a cooler and a water pump.

A worked example: how much weight is in your stock

Say an office keeps four full 5-gallon bottles on hand. That is 4 × 41.7 = about 167 pounds of water, plus the bottles. Six full 3-gallon bottles would be 6 × 25 = about 150 pounds.

That is why the CDC’s guidance on stored water says containers should be stacked no higher than the manufacturer recommends, and that the floor must be sound enough to support the weight. A sturdy floor-level spot is the right place for a stock of full jugs.

Frequently asked questions

How much does a 3-gallon water jug weigh?

About 25 pounds of water (3 × 8.34), plus the bottle. That is roughly 17 pounds lighter than a full 5-gallon jug.

Is a 5-gallon jug too heavy to lift?

It is under NIOSH’s 51-pound maximum for an ideal two-handed lift, but lifting it onto a top-load cooler is not ideal. If it is a struggle, a bottom-load cooler or 3-gallon bottles remove most of the strain.

Does the type of water change the weight?

Not in any way you would notice. USGS notes that dissolved material makes a gallon slightly heavier and temperature changes it slightly, but alkaline, spring and distilled bottles of the same size weigh essentially the same.

Do your drivers bring bottles inside?

Placement depends on the building. Our FAQ explains where deliveries are placed for homes, elevator buildings, offices and walk-ups.

Ready to set up delivery? Choose your bottles and cooler here.

Sources

• U.S. Geological Survey — A Million Gallons of Water: How Much Is It? (8.34 pounds per gallon)
• U.S. Geological Survey — Water Density
• NIOSH — Ergonomic Guidelines for Manual Material Handling, Publication 2007-131 (PDF)
• CDC — Emergency Water Supply Planning Guide for Hospitals and Healthcare Facilities, section 7.7 (PDF)