The quietest generators don’t need to be the most expensive ones. In fact, some of the most affordable ones produce much lesser noise level in comparison with some of the best brands out there. With thorough research and customer reviews, we provide you a list of the most recommended quiet generators currently out on the market.

Yamaha EF2000iSCHChampion 75537iGenerac 6866 iQ2000Yamaha EF2400iSHCSmarter Tools STAP-2000iQ
2000/1600 watts3100/2800 watts2000/1600 watts2400/2000 watts2000/1600 watts
19.7 x 11 x 19.3 Inches20.1 x 20.5 x 28.1 Inches20 x 12.6 x 16.9 inches18 x 17 x 21 Inches18 x 11 x 19.75 Inches
1.1 Gallons1.6 Gallons1.06 Gallons1.6 Gallons1.1 Gallons
51.5 – 61 dBA58 dBA51 dBA58 dBA51 dBA
44 lbs95 lbs46 lbs75 lbs47 lbs

TOP 5 Quietest Models

Yamaha EF2000iSCH, Quiet Gas Portable Inverter

Yamaha EF2000iSCH

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The Yamaha EF2000iSCH generator is not among the cheapest of generators, but it is competitively quiet and is also listed as one of the most portable generators available. It runs on a 1600 watt rated AC output at a maximum of 2000 watt, with a current of 13.3/16.7 amps at 120 V.

This inverter generator is designed with a single cylinder, air-cooled engine of 79cc OHV. It comes with a super-quiet muffler and is approved by the USFS (United States Forest Service). This means not only does this generator produce little to no noise, but it also is eco- friendly. On top of that, it has an outstanding EPA & CARB Emission Engine Durability Rating, proving its worth.

Things you might want to know:

There is no such thing as a perfect generator. If there was, there would be no other competition and a high chance of being absurdly expensive.

It’s no secret that it has its own disadvantages. Unlike the others on the list, it burns oil a bit faster. Despite regular and thorough maintenance checkups, it still requires oil more than its competitors.

Why consider buying this generator:

When talking about advantages, it easily surpasses most of the generic generators out there that are slightly less expensive than this one. Aside from being quiet and having an environment-friendly engine, it has simple operation instructions and has up to 10.5 hours of running time ¼ load on a tank of gas. If you’re still not convinced, maybe its product rating of 84% will.

Portability: 19.7 x 11 x 19.3 Inches and weighs 44 pounds
Noise Level: Approximately 51.5 – 61 dBA (Refrigerator up to a Normal Conversation)
Tank Size: 1.1 Gallons
Warranty: 3 Years

Champion Power Equipment 75537i

Champion 75537i 3100 Watt RV Ready Portable Inverter Generator

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If you want to purchase a quiet portable generator with convenient features, consider Champion 75537i. It is an inverter generator that comes with a wireless remote control. It allows you to start or stop the generator at a reasonable reach of up to 80 feet.

Other features include a 3-position ignition switch with a quick touch panel that allows easy access to its controls and clean electricity for sensitive electronics. The generator is powered by a 120 Volt 30A RV, or two 120 Volt 20A from your household outlets. It can produce a good 3100 starting watts and 2800 running watts for up to 8 hours of 25% load.

Things you might want to know:

Though the generator has its perks, it also has a few flaws. The remote is made of cheap quality, no fuel gauge, and a little bit difficult to start up. There is, however, a slight chance that the products experiencing the hard start-up are manufacturing defects.

Why consider buying this generator:

With mostly positive feedback and a very high product rating of 88%, there is no reason why this good and cheap generator shouldn’t be on your list. It is highly recommended to for home or for RV.

Portability: 20.1 x 20.5 x 28.1 Inches and weighs 95 pounds
Noise Level: Around 58 dBA (A little less quiet than Normal Conversations)
Tank Size: 1.6 Gallons
Warranty: 3 years

Generac 6866 iQ2000 Super Quiet

Generac 6866 iQ2000 Generator

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Developed by Generac, one of the best brands known for its generators and power tools, you can go no wrong with this one. It is considerably cheap. Don’t get the wrong idea of it being made of cheap quality, however, because this generator can operate better than most of its competitors out there.

The Generac 6866 iQ2000 is designed with a PowerDial that integrates your basic functions into a single easy-to-operate dial. It also has PowerBar monitors that display the amount of wattage used. This gas-powered generator can run for up to 7.7 hours at 25% load and is parallel capable.

Things you might want to know:

Although the majority of its feedbacks were mostly positive, there were mentions of some fuel line issues and having a very poor customer service.

Why consider buying this generator:

What makes the Generac iQ2000 standout is its fuel-saving engine, very low decibel rating, and extremely portable. It is ranked as one of the smallest generators to be fair. There are also three modes from which you can choose from, namely Turbo, Standard, and Economy. Other than that, it probably has the best price for its value.

Portability: 16.9 x 12.6 x 20 Inches and weighs 46.2 pounds
Noise Level: Approximately 51 dBA (Refrigerator)
Tank Size: 1.06 Gallons
Warranty: 3 years

Yamaha EF2400iSHC Whisper Quiet Inverter Generator

Yamaha EF2400iSHC Portable Inverter

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We all know Yamaha is a reputable company, and that is just but one reason why this pretty silent generator is on our recommended list. It is however not an easy purchase especially when you are on a budget.

The Yamaha EF2400iSHC is a bit more expensive for a reason. It has an increased motor starting capability, produces clean power, is whisper quiet, is eco-friendly, and is designed to have minimal maintenance.

On top of that, it has enough power to run most of 13,500 but RV air conditioners and microwave ovens, which only a number of generators can accomplish. Its 84% product rating is a testament to its quality and efficiency. It has a runtime of 9 hours at 25% load, produces 2,400 starting and 2,000 running watts.

Things you might want to know:

As always, there will be complaints. Luckily for this generator, there were only a few. Users can’t add an extra accessory such as a fuel tank and is always on eco-mode. This is somewhat important since inductive loads with frequent surges require different mode. Forcing it may damage the motherboard of your generator.

Why consider buying this generator:

EF2400iSHC is one of the most quiet generators when power output is concerned. One should consider the load of the unit. Other generators usually have a decibel rating of 59 but at only 1600 watts. This one however only produces 58 dBA and at 2000 watts.

Portability: 18 x 17 x 21 Inches and weighs 75 pounds
Noise Level: Approximately 53 – 60 dBA (Refrigerator up to a Normal Conversation)
Tank Size: 1.6 Gallons
Warranty: 3 years

Smarter Tools STAP-2000iQ Low Noise Generator

Smarter Tools STAP-2000iQ

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Another low noise generator from Yamaha, the Smarter Tools STAP-2000iQ is equipped with their MZ80 Engine. It simply means maximum compliance with CARB and EPA, making it eco-friendly and cost-effective. It is designed with a super-quiet muffler, emitting only around 51 dB of noise while eliminating straying sparks.

Unlike most generators out on the market, this one is designed with Pure Sinewave technology, making it suitable and safe to power extra sensitive electronic equipment such as laptops. To add, it also is parallel capable with another AP-2000iQ to get 3000 sustained wattage.

Things you might want to know:

Though it can reach 3,000 watts when paralleled, it can only produce 1,600 watts on its own. Also, the reviews by customers were not all positive. Notably the customer service they were provided.

Why consider buying this generator:

The AP-20008Q is undoubtedly one of the quietest generators while being one of the most portable generators out there. That being said, it is feasible that it might be the quietest portable generator.

Portability: 18.25 x 11.25 x 19.75 Inches and weighs 47 pounds
Noise Level: Approximately 51 dBA (Refrigerator)
Tank Size: 1.1 Gallons
Warranty: 3 years

The Quietest Generator – What Does It Mean?

It’s obviously the ones’ with the least decibel range or noise levels, right?

Right, you are but here’s the catch:

While it may seem that it is, it’s actually not that simple. There are things to consider such as the ambiance of where the generator is operated on, and how much generator power it loads. Fuel also is a factor. Propane generator tends to produce less noise, while those that require diesel produce more.

To put it in perspective, imagine a whisper quiet generator running on only 5000 watts; now compare it to a different one that operates on a low-noise level but running on 10000 watts. The former may be quieter but it can only produce half of the second one.

Now for the next part, imagine running a generator on a wide open space. Compare it with the same generator running on a compact space like your room. Your room will most likely have the effect of giving out less noise volume from the generator. That’s because the density of air and other ambient noises are also a factor.

In conclusion, it depends on how much power you need, where you’ll be using it, and how will you be using it.

Sound and the Decibel Scale

Sounds that we hear are caused by sound waves. These sound waves are then measured through a decibel reading. For simplicity purposes, you can check out the decibel scale between the intensity levels of decibels and their relative common sound source below.

                    Decibel Level                   Relative Sound Source
                           10                             Breathing
                           20                            Whispering
                           30                        Quiet Rural Area
                           40                      Bird Calls/Library
                           50                    Home Conversations
                           60               Office/Background Music
                           70                        Vacuum Cleaner

dB Ratings – Strange Decibels

Decibel measurement is somewhat tricky. In fact, reputable brands have even stated of measuring noise level as unreliable, since there is no official or standard way of measuring it, except for science labs.

Here is a good example to portray how decibels are measured:

Doubling the distance between the source and from your standpoint will not halve the noise intensity. Instead, it will be quartered. If you are 2 meters away from a sound source emitting 40 dB of noise, the level of intensity will be reduced to only 10 dB when you are 4 meters farther away.

Here’s the kicker:

Moving further away from the sound source may mean moving in close to a different sound source. A little bit confusing right?

What we’re trying to say is that acknowledge the dB ratings on products with a little skepticism. We may never know how and where they measured it.

Calculating The Decibel Levels of Generators

There are a few options for getting the decibel levels of your generators.

Use Mobile Apps:

It may not be accurate, but it is the easiest and the cheapest. Discrepancies may be within 5 decibels even with good quality apps, which is actually not bad.

Use Windows phones:

It is more accurate than mobile apps, but you will need to acquire software to measure how loud is the generator.

Use Professional Decibel Meters:

The most accurate but also the most expensive way is using a high quality specialized tool to measure decibels.

Remember, background noise is also measured. It would be wise to measure background noise firsthand and subtracting it to your measured dB level of the generator after.

Learn more about 10 Best Portable & Stationary Generators