Dishwasher Decibel Ratings

A decibel measures the power of sound. The louder the noise, the higher the decibel level as well as the discomfort to your ears -- think of a hairdryer or a motorcycle starting. As a major home appliance, the dishwasher is frequently on and running; it can produce varying decibel levels depending on the type and brand of the unit.

Housework: young woman putting dishes in the dishwasher
credit: ViktorCap/iStock/Getty Images
To minimize excess noise, select a quiet dishwasher in homes with open floor plans.

Dishwasher Decibel Levels

Check the decibel ratings when shopping for a dishwasher -- especially if your home has an open floor plan or your living room is adjacent to the kitchen -- to determine the noise level of the unit you want to buy. The decibel rating is usually listed on the manufacturer's website or in the dishwasher's instruction manual. A rating of 45 decibels or lower is virtually silent, and ratings over 50 decibels are equivalent to normal conversation levels. The main factor affecting the noise level of a dishwasher is the amount of insulation installed around the dishwasher tub. Newer dishwasher models and units featuring thick insulation will have the quietest noise levels when running.


Charity Tober

Based in Lake Mary, Fla., Charity Tober writes mainly on finance, career, interior decorating, parenting and weddings. Tober has also self-published two children's picture books. She holds a Bachelor of Arts in business administration from the University of Florida.