How many decibels is a Whirlpool dishwasher?
A current Whirlpool built-in dishwasher lists between 41 and 57 dBA. The Eco Series WDTS7024RZ and WDPS7024RZ hold the low end, the front control WDF341PAPM the high end, and most models cluster at 47, 50, 51 or 55.
Whirlpool writes the figure several ways. The AI Intelligent Wash models put "47 dBA" in the product name and repeat it as "a sound rating of 47 dBAs". The 51 and 55 dBA models describe "a dishwasher sound level of just" the number. The Auto Open Air Dry models show it only as a feature tile headed "47 dBA".
Whatever the wording, the number is the same kind of thing on each page: a single dBA value with no cycle attached. That keeps one Whirlpool fairly comparable with another, provided you read the full model number, since finish codes such as Z, B, W and V never changed the figure on any model we read.
Which Whirlpool dishwasher is the quietest?
The Eco Series WDTS7024RZ is the quietest Whirlpool dishwasher, at 41 dBA, and its pocket handle twin WDPS7024RZ lists the same. Whirlpool backs that up in its own copy, calling the 41 dBA figure "Whirlpool brand’s quietest dishwasher".
Both were $1,049 on October 21, 2026, and both were in stock; the black stainless WDPS7024RV was $1,149 and out of stock. They share a stainless tub, 15 place settings, hidden controls and a third rack with its own wash tube.
The description pairs the two boasts Whirlpool cares about: "our quietest and largest capacity dishwasher." The 47 dBA 8024 models make the capacity claim too, so on Whirlpool's own pages size is shared and only the 7024 pair claims the lowest number.
How loud is a full size Whirlpool with a stainless tub?
Whirlpool's full size stainless tub models list 41 to 50 dBA. These are 24 inch built-ins, 33 5/8 inches tall. Prices are whirlpool.com's own from October 21, 2026, before the extra discount most pages offered to signed-in account holders.
- 41 dBA: Eco Series WDTS7024RZ, towel bar, $1,049, in stock. WDPS7024RZ, pocket handle, $1,049, in stock. WDPS7024RV, black stainless, $1,149, out of stock.
- 47 dBA, Auto Open Air Dry: WDTS8024SZ, towel bar, $1,099, low stock. WDTS8024SV, black stainless, $1,199, in stock. WDPS8024SZ, pocket handle, $1,099, in stock.
- 47 dBA, AI Intelligent Wash: WDT750SAKZ and long pocket WDTA50SAKZ, $949, in stock. Black WDT750SAKB and WDTA50SAKB, $929, in stock. Black stainless WDT750SAKV and WDTA50SAKV, $1,049, in stock. White WDT750SAKW ($929, out of stock) and WDTA50SAKW ($929, low stock).
- 50 dBA, Tall Top Rack: WDT740SALZ, $899, low stock. WDT740SALB and WDT740SALW, $877, out of stock.
- 50 dBA, Spin&Load: WDT745SASZ, $949, in stock. Its spec table names no tub material, so it is filed here by family rather than by tub.
How loud are Whirlpool's plastic tub dishwashers?
Whirlpool's plastic tub built-ins list 51 to 57 dBA. The 51 and 55 dBA models have top controls and what Whirlpool calls a "Plastic with Stainless Steel Door" tub; the 57 dBA model has front controls and an all plastic tub.
- 51 dBA: WDT730HAMZ, towel bar, $829, in stock. WDP730HAMZ, pocket handle, $663.20, out of stock. WDT710HATZ, towel bar, $777, low stock.
- 55 dBA: WDP540HAMZ, pocket handle, $721, in stock. WDT540HAMZ, towel bar, $721, out of stock. WDP540HAMB and WDP540HAMW, $688, out of stock. WDP530HATZ, pocket handle, $659, low stock.
- 57 dBA: front control WDF341PAPM, $632, in stock. WDF341PAPW and WDF341PAPB, $554, out of stock.
The 51 dBA models add a utensil third rack and 14 place settings; the 55 and 57 dBA models hold 12 and have none. Whirlpool still describes the 57 dBA WDF341 as a "quiet dishwasher", while its blog suggests anything above 55 dBA may intrude on conversation, so treat the word quiet on these pages as a label.
Does a stainless tub make a Whirlpool dishwasher quieter?
Yes, by Whirlpool's own numbers: each current model whose spec table lists a stainless steel tub is rated 50 dBA or lower, and each plastic tub model 51 or higher. Whirlpool's blog says stainless tubs "help dampen the noise".
Tub is the cleanest dividing line in the range, though other things change with it. The stainless tub models also tend to carry sensor cycles and bigger racks, so the tub is one difference among several. Whirlpool never assigns a number of decibels to the tub itself.
The sound package name points the other way from what you might expect. The Sound Package row reads "Quiet Pack™" only on the 51 and 55 dBA plastic tub models, while the stainless tub models, the 41 dBA pair included, just say "Yes".
Is 44 dBA quiet for a dishwasher?
A 44 dBA rating counts as quiet on Whirlpool's own yardstick: its blog says a dishwasher at 44 dBA or lower "may be considered quiet". The one Whirlpool listed at 44 is the WDT550SAPZ, a shorter model built for accessible kitchens.
At 32 5/16 inches tall, it sits lower than the standard height models, and Whirlpool says its adjustable feet let it go into "a standard and ADA cutout". It mounts flush with the cabinets and dries with a door that opens at the end of the cycle.
All three colors showed out of stock on October 21, 2026: stainless WDT550SAPZ at $1,049, and white WDT550SAPW and black WDT550SAPB at $1,029. Because it is built to a different height, we keep it apart from the full size lists rather than ranking it between the 41 and 47 dBA models.
How loud is a Whirlpool 18 inch dishwasher?
Whirlpool's 18 inch built-in, the WDFS5118SS, lists 48 dBA, and Whirlpool notes the figure dropped from 50 dBA on the WDF518SAHM it replaced. It was $1,299 and out of stock on October 21, 2026.
It holds 8 place settings, comes with a three prong cord, installs flush and meets ADA rules. The older 18 inch WDF518SAFW was still listed as a $679 closeout but carries no figure, only a mention of the "Quiet Partner™ I sound package".
Whirlpool also sells the WDPS5118PW, a compact closeout with 8 place settings, at 50 dBA "Per IEC standards" for $399, and $339 in black as the WDPS5118PB. Its page gives no width, so we list it beside the 18 inch model without ranking the two. For a narrow opening, 18 inch dishwashers from other brands widen the choice.
Are Whirlpool Eco Series dishwashers quieter?
No, Whirlpool's Eco Series spans 41 to 55 dBA, so the badge tells you nothing about noise. The same "Eco Series" feature tile appears on the 41 dBA WDTS7024RZ, the 47 dBA AI Intelligent Wash models, the 51 dBA WDT730HAMZ and the 55 dBA WDP540HAMZ.
Whirlpool describes the series as "Designed with efficiency in mind", footnoted against dishwashers that meet the minimum 2023 Department of Energy standards. It is an efficiency label, and even within it, ENERGY STAR status varies: several Eco Series spec tables read "Energy Star Qualified: No".
The Eco Series WDT970SAKZ, a $863 closeout with a washing third rack and 15 place settings, is a reminder of that: its spec table reads "Sound Package: Yes" and gives no figure at all.
Does Whirlpool say how it tests dishwasher noise?
Not on its product pages. Whirlpool's dBA figures come without a cycle, distance or standard, except the compact WDPS5118PW, which adds "Per IEC standards" without naming the document.
Whirlpool's blog on quiet dishwashers offers one clue about method. It says its rankings were "recorded by a third-party manufacturing company, Owens Corning", without naming models, a cycle or a distance. That leaves Whirlpool's figures sound for ranking Whirlpools against each other and weaker for lining up ratings from different makers.
GE's Quiet Package figures carry the same gap, with no cycle named, so a 47 dBA Whirlpool and a 47 dBA GE are equal only on paper.
What noises does Whirlpool call normal during a wash cycle?
Whirlpool's help page names rushing water, humming and swishing as normal dishwasher sounds. Rushing comes with filling and washing, humming with the drain pump, and swishing with the spray arms.
The same page says installation changes how loud those sounds seem. A dishwasher at the "ends of cabinet rows" may let more sound through than one fitted between two cabinets, and a unit that is not level or firmly mounted can pass vibration into the cabinetry.
It also lists smaller sounds that are part of a cycle, such as a click from the water inlet valve and a snap when the detergent dispenser opens. Loose plastic cups and lids rattle, so loading matters as well as the dBA rating.
How much quieter is a 41 dBA Whirlpool than a 51 dBA one?
A 41 dBA Whirlpool should sound about half as loud as a 51 dBA one, if Whirlpool measured both under the same conditions. Whirlpool's blog puts it as each 10 decibel increase that "doubles the perceived noise level".
On October 21, 2026 that gap was $220: $1,049 for the WDTS7024RZ against $829 for the WDT730HAMZ. Smaller steps cost less. The six dBA from a 47 dBA WDT750SAKZ down to the 41 dBA model was $100, and the four dBA from 51 to 47 was $120 between the WDT730HAMZ and the WDT750SAKZ.
In an open plan room those steps are worth more than the numbers suggest, because the dishwasher often runs while people talk or watch TV nearby.
