Data through April 2026
Dishwashers · 68 certified models
Dishwashers Under 18" Wide
Filtering to dishwashers under 18" wide narrows the field to 68 of the 677 certified dishwashers in this data, ranging $15–$45 a year at national-average electricity rates (median $44).
The 50 most efficient (of 68)
Other size facets
Questions, answered with the data
- How much does it cost to run dishwashers under 18" wide?
- Among 68 certified models in this data, dishwashers under 18" wide cost $15 to $45 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $44.
- Do dishwashers under 18" wide cost more or less than the average dishwasher?
- The median model here runs $44 a year, 2% less than the $45 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.