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If you’re considering installing a hot tub, you are probably wondering how much a hot tub weigh full of water. The weight of a hot tub when filled with water varies greatly depending on the size, shape, and material it is made of. Because of the wide array of sizes and shapes available, there are no industry standards for what a hot tub weighs when filled with water. There are, however, a few examples and averages that we discuss in this article to answer how much a hot tub weighs when full of water.
How much does a hot tub weigh full of water?
The weight of an empty hot tub is about 600 pounds, and this weight can increase to up to 3000 lbs when full of water. However, because of the vast number of variables that can occur, such as size and shape, the actual weight of the hot tub can vary greatly from one to the next.
For example, a small hot tub that holds 2 to 3 people typically has a weight of about 2,575 lbs with water, a medium-sized hot tub that holds 4 to 5 people has an average weight of 3,700 lbs with water, and a large hot tub that sits up to 8 people weighs about 4,300 lbs with water.
How much does a hot tub weigh when empty?
The weight of an empty hot tub varies depending on the make, model, size, and shape of the tub. Inflatable hot tubs, for example, typically weigh less than non-inflatable models and are easier to move around when empty.
In fact, most inflatable models weigh less than 100 lbs or just a bit over that when not filled with water. Once filled with water, however, their weight can jump to close to 3,000 lbs!
Hot tubs made with other materials, such as stainless steel, fiberglass, or concrete, weigh anywhere from 200 lbs to almost 1,000 lbs. It is rare for a hot tub to weigh over 1,000 lbs when empty.
How much does a hot tub weigh with water and people?
When empty, a smaller hot tub that holds two to three people will weigh about 900 lbs with water and people. A medium-sized hot tub that holds four to five people can weigh about 4400 lbs with water and people. For a larger six to the eight-person hot tub, the weight is, on average, 5500 lbs with water and people.
Examples of hot tub weights when filled with water
Below you will find a few examples of different types, models, and sizes of hot tubs with their empty weight, as well as what they weigh when filled with water.
- American Spas Glory – 800 lbs when empty and 4345 lbs when filled with water
- AquaRest Spas Premium – 295 lbs when empty and 2297 lbs when filled with water
- Bestway 7 Person 81 Inflatable Hot Tub – 104 lbs when empty and 2580 when filled with water
- Coleman 6 Person 60 Jet Round Inflatable Hot Tub – 86 lbs when empty and 2104 lbs when filled with water
- Coleman SaluSpa Inflatable Hot Tub – 88 lbs when empty and 2701 lbs when filled with water
- Essential Hot Tubs Adelaide – 630 lbs when empty and 3132 lbs when filled with water
- FutuerSpas 6 Person – 800 lbs empty when empty and 3793 lbs when filled with water
- Hudson Bay Spas 6 Person 19 Jet Square Hot Tub – 600 lbs when empty and 3100 lbs when filled with water
What affects the weight of a hot tub?
The size and shape of the hot tub will have an effect on its weight. Larger tubs designed to hold more people usually weigh more than their smaller counterparts. The larger the tub, the more water and people it can hold, and thus, the more it will weigh.
The type of material the hot tub is made out of also plays a huge part in what the tub weighs with and without water. For example, soft plastic typically weighs less than 100 lbs when empty, acrylic has an empty weight of about 450 lbs, and fiberglass hot tubs have an empty weight of around 330 lbs.
How to find out the weight of your hot tub
If you have the hot tub’s water capacity and empty weight, you can get a rough calculation of what the weight of the hot tub is when filled with water. One gallon of water weighs approximately 8.34 lbs. Take that amount and multiply it with the water capacity of the hot tub, then add the empty weight of the tub. That will give you the estimated weight of the hot tub when filled with water.
Hot tubs also typically come with a manual created by the manufacturer that details important information that owners should know, such as the empty weight, water capacity, and various other specifications.
If you don’t have a manual, you may be able to find this information by visiting the manufacturer’s website or contacting the manufacturer directly. Just make sure you have the model number of your hot tub since this information is vital to ensuring you get the correct weight for your specific hot tub.
Why should I know the weight of my hot tub?
There are several reasons why you may need to know the weight of the hot tub when filled with water, including for installation, transportation, and safety precautions for deck capacity.
If the hot tub is held by a deck, for example, the weight of the tub when filled with water and people could exceed the maximum amount of weight the deck can hold. This may result in a damaged hot tub, broken deck, and even injuries to those using the hot tub.
Knowing how much a hot tub weigh full of water is vital to ensuring the hot tub will sit safely in the designated area. Keep in mind, however, that the weight of the actual hot tub depends on its capacity, and this capacity isn’t just the amount of water.
It also includes the number of people the hot tub is designed to hold. This is why it is important to not only know the weight of the hot tub when filled with water but also the maximum amount of weight the area where the tub will sit can safely hold.
Conclusion
Now that you have some estimates and examples of how much hot tubs can weigh when they’re full of water, you can see there are a lot of factors that could influence their weights when full.
Based on the example given above, most hot tubs will weigh about 5 times more when full of water vs. when empty. Inflatable hot tubs tend to weigh much less than other types of hot tubs when empty.
