What decibel is a quiet dishwasher?

Decibels are used to measure the noise levels in a dishwasher to give you an idea of how loud it will be when running. Denoted with levels of dBA, this translates to “A-weighted decibels,” and the lower the score, the quieter your appliance will be. Generally speaking, modern dishwashers can range between 38 to 60 dBA.

Every increase of 10 decibels doubles the perceived noise level of a dishwasher. So while a dishwasher at 41 dBA is comparable to moderate rainfall and barely noticeable during conversation, one at 50 dBA sounds more like a normal conversation at home—a noticeable hum—and a model at 60 dBA is clearly audible, like a conversation in an office or restaurant.

To determine this ranking, dishwashers are measured against other kitchen appliances and recorded by a third-party manufacturing company, Owens Corning.

The structure and mechanics of a dishwasher can go a long way in minimizing loud noises in your kitchen. Factors such as insulation, material, disposal features and water flow can affect the decibel level of your appliance.

• Insulation - The insulation blanket placed around the exterior of the dishwasher is designed to trap heat and muffle sound. The type and amount of insulation between your dishwasher and cabinetry plays a role in muffling the sounds emitted while your appliance is running.

• Material - Dishwashers made with stainless steel tubs help dampen the noise and are generally quieter than those structured with plastic. Sound dampening on the outside of a stainless steel tub helps decrease noise, and stainless steel retains heat better than plastic, which may also improve drying performance.

• Disposal - Models with food disposals will be noisier than models without. Many dishwashers now use a food trap filtration system instead, which is easy to clean and results in quieter dishwasher operation.

• Water Flow - For your dishwasher to function properly, water is pumped in, cycled through a wash and pumped out after the cycle is complete. This process can be noisy, but factors such as water force, water speed, quiet pump systems and cycle innovations can help lower the dBA rating for a quieter dishwasher.

For a better understanding of decibel levels, refer to the chart below to compare them with everyday sounds. Typically, dishwashers range from 38 to 60 dBA, with a lower score resulting in a quieter appliance. If you have an open concept kitchen close to your family room, you may find a quieter dishwasher more appealing—even a few decibels can make a difference when your kitchen and living spaces share the same area.

Knowing the factors that help minimize dishwasher noise and understanding decibel levels are the keys to finding a quiet semi or fully-integrated dishwasher for your home. 
 

• Household layout - Anything over 55 dBA could possibly interrupt kitchen conversations or prove noisy in an open home layout, so if your kitchen is open to your living or dining area, prioritizing a lower dBA rating may be worth the investment.

• Tub material - Stainless steel tubs can be a durable option for heavy-duty use and may result in a quieter wash cycle than dishwashers with plastic tubs. These tubs also tend to retain heat better than plastic tubs, which may make them more efficient in cleaning and drying dishes.

• Cycles and settings - Look for useful features that enhance convenience for your family, such as adjustable racks, specialized wash cycles and quiet operation. Innovations to wash cycles, the amount of force and speed used to spray water, and quieter pump systems can all help minimize sound during the wash and rinse cycles.

Consider select Whirlpool^® Dishwashers with a 40 to 50 dBA for a quiet appliance that runs in the background while you get back to what matters most. For tips on configuration, style, size and features, check out this dishwasher buying guide to help you choose the right model for the clean you need.

Learn more about quiet dishwashers by reading answers to some common questions about them below.

A quiet dishwasher from Whirlpool brand can handle everyday mealtime messes and run discreetly while it works. With convenient features like Third Racks and models with sounds as low as 41 dBA, you’ll always have the room you need to load more and run less for a quiet operation. Discover quiet dishwashers from Whirlpool brand to find the right model for your home.