What is the Difference Between 1/2 and 3/4 Garbage Disposal: What HP Do I Need?

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If you are confused about what is the difference between 1/2 and 3/4 garbage disposal and which one might suit you, then you are not alone!

Primarily if we see the difference of 1/2 vs 3/4 horsepower garbage disposal, then we can see that 1/2 horsepower garbage disposal comes with less power compared to 3/4 horsepower garbage disposal. That’s why the additional size, grinding power, noise, and price range show a wide difference between them.

In the market, you can see many types of garbage disposal, which are very separate from each other in terms of feed, performance, design, size, and variety. Basically, the manufacturers have designed both disposers, keeping different usability in mind.

So if you are looking for the best garbage disposal for your kitchen, then you need to know some basics about garbage disposal so that at least you can pick the suitable option for you.

Without wasting time, let’s begin.

What is the Difference Between 1/2 and 3/4 Garbage Disposal: [Step by Step]

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In this section, we have discussed the difference between 1/2 vs 3/4 garbage disposal in detail, part by part, so carefully concentrate on each stage.

Build Quality

At first, if we compare the build quality of a 1/2 HP garbage disposal with a 3/4 HP garbage disposal, then we can see that the 3/4 HP disposer is much ahead. One of the reasons behind this is cost. Basically, the 1/2 HP disposers are a budget-friendly option, due to which most manufacturers cut a bit in build quality to adjust the production cost.

On the other hand, 3/4 HP disposers are a bit expensive; the main reason is that their grinding components are made of stainless steel, which provides more strength. That’s why these types of materials last for many years.

Grinding Power

Basically, the 1/2 hp disposer is designed for a small family, like 1 to 5 people or a small apartment. Due to this, its functionality is quite limited, and the grinding power is comparatively less. When you grind excessive waste, pay special attention to fat, proteins, and fibrous materials so that these are not going inside the disposer. If these things go inside the disposer, you will face clogging or sudden turn-off issues.

But a 3/4 hp disposer is entirely the opposite; it is designed in a very powerful way and is the best option for a 5 to 8 person large family. It can efficiently dispose of potential food and more waste grinding. So there is no objection to grinding power.


Most brands use noise-insulating foams in 3/4 hp disposers, which makes it relatively quieter. On the other hand, since the 1/2 hp disposer is a budget pick, a noise canceling feature is not provided in most models, due to which they are quite loud.

However, all 3/4 hp models do not have the noise insulation feature, and all 1/2 hp models are not louder. So before purchasing, you must check the specifications to see whether they have the quiet technology feature.


As we mentioned earlier, the motor in 1/2 hp units is slightly less powerful than the 3/4 hp, which is also very compact and affects the full disposer design. As a result, a 1/2 hp disposer is more compact than a 3/4 hp disposer.

On the other hand, a 3/4 hp unit comes with a large motor, noise canceling, and additional features, which make its size a bit larger compared to 1/2 hp. So if your kitchen has limited space, then whatever disposer you want, you must check the exact size from the specifications.

Price Range

Undoubtedly, since the 3/4 hp disposer is relatively ahead in build quality, performance, and other functionality, it is expected that it will be very expensive in its price range.

But you will be happy to know that their price difference is not so much in all cases; some cases are very close. One of the reasons is that most brands keep the build quality of 3/4 and 1/2 hp disposers similar, due to which the price is quite comparable.

A great example is the InSinkErator Badger series disposers, whose every size disposer’s build quality is equal, due to which the price of 1/3 hp to 1 hp is slightly different.


Build quality has a special connection with the warranty feature; that’s why if you notice the warranty period, you will see that the market’s durable build quality disposer’s warranty period is much longer. Similarly, the 3/4 disposer is much longer in terms of the warranty.

Most 1/2 HP Waste King garbage disposals provide up to 5 years warranty period, which is much more than other brands of 1/2 hp disposers. On the other hand, among the 3/4 hp disposers, the InSinkErator Evolution series garbage disposal provides a warranty period of up to 8 years, which is much longer.

Is a Higher HP Better for a Garbage Disposal?

The short answer is Yes. Garbage disposal horsepower or hp is one of the most crucial parts of any disposer. The disposer’s performance, size, cost, and overall things depend on it.

Generally, you will see 1/3 hp to 3 hp garbage disposal in the market, so check which one suits you perfectly and then pick the disposer. You can read our best garbage disposal guide also.

Final Thought: 1/2 or 3/4; Which One Should You Pick?

After purchasing a garbage disposal, any homeowner who wants to get long-term service from it, I think you are not an exception. So when you pick disposal, select from reputed brands like Waste King, Moen, and InSinkErator.

Also, at the time of selection, pay special attention to types of garbage disposal feed, horsepower, and size so that you don’t have to face garbage disposal jams or sudden garbage disposer turn OFF issues.

Hopefully, our what is the difference between 1/2 and 3/4 garbage disposal guides have helped you know about disposer differences.

If you are still confused and want to know from us which will be the most suitable option for you, then we will recommend the 3/4 hp disposal; it is much ahead in terms of performance, functionality, and other features. But if you are looking for a budget-friendly option and also do not use it constantly, then you can go for a 1/2 hp disposal.