WattCost

Data through June 2026

Dishwashers · 69 certified models

Dishwashers Under 18" Wide

Filtering to dishwashers under 18" wide narrows the field to 69 of the 697 certified dishwashers in this data, ranging $15–$44 a year at national-average electricity rates (median $43).

The 50 most efficient (of 69)

Dishwashers Under 18" Wide, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1Loch L112680$15
2Fotile SD1F-S1155$28
3Fotile SD2F-P5155$28
4Fotile SD2F-P5L155$28
5Miele G 5892 SCVi SLmost efficient200$37
6Miele G 5482 SCVi SLmost efficient220$40
7Whirlpool UDPS5118SPmost efficient220$40
8Whirlpool WDFS5118SSmost efficient220$40
9AEG F8242FI-18234$43
10Danby DDW1832ESS234$43
11Edgestar BIDW1802234$43
12Electrolux EDSR1832234$43
13ELEMENT ENB6631PE234$43
14FULGOR MILANO F4DWS18FI1234$43
15Honeywell HDS18234$43
16Honeywell HDS18SS234$43
17Kenmore 1470234$43
18KOOLMORE KM-DW1852-PR234$43
19LG LDWPC12BL234$43
20Midea CDF18A2B234$43
21Midea MDF18A1A234$43
22Smeg STU1822234$43
23SPT SD-9254SS234$43
24SPT SD-9254W234$43
25Summit ADADW18B234$43
26Summit ADADW18NT234$43
27Summit ADADW18SS234$43
28Summit ADADW18W234$43
29Summit DW183W234$43
30Summit DW183WADA234$43
31Summit DW184B234$43
32Summit DW184BADA234$43
33Summit DW185SS234$43
34Summit DW185SSADA234$43
35Summit DW186NT234$43
36Summit DW186NTADA234$43
37Summit LDW18BA234$43
38Summit LDW18NTA234$43
39Summit LDW18SSA234$43
40Summit LDW18WA234$43
41Whirlpool UDPS5118PP234$43
42Whirlpool WDPS5118P234$43
43Zline DW7714-18234$43
44Bertazzoni DW18S2IPV239$44
45Bertazzoni DW18S2IXV239$44
46Danby DDW18D1EB239$44
47Danby DDW18D1ESS239$44
48Danby DDW18D1EW239$44
49Equator BB 1840239$44
50Equator SB 1840239$44

Other size facets

Questions, answered with the data

How much does it cost to run dishwashers under 18" wide?
Among 69 certified models in this data, dishwashers under 18" wide cost $15 to $44 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $43.
Do dishwashers under 18" wide cost more or less than the average dishwasher?
The median model here runs $43 a year, 2% less than the $44 median across all certified dishwashers.
What's the cheapest model among dishwashers under 18" wide?
The Loch L1126 costs about $15 a year at the U.S. average rate (80 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for dishwashers?
The certified annual kWh assumes 215 wash cycles per year (the DOE standard, roughly 4 loads a week) and includes the energy to heat water.

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