How the appliance figures are built
Every count on the site is a count of real models on the ENERGY STAR certified lists of November 12, 2026, kept when the maker lists them for the United States. Every running cost is the model's yearly kWh from the Department of Energy test times the average home price of electricity in the state, from the EIA, for August 2026.
Most pages about appliance sizes and power use reason with an average wattage and a price per kWh that is years old. Every appliance sold with an ENERGY STAR label has its height, width, capacity and yearly kWh measured and published, model by model, on a public list that the EPA (the Environmental Protection Agency) updates almost every day; and the EIA (the Energy Information Administration) publishes what a kWh costs in each state every month. This site joins the two: it counts the real models that fit your space and prices the energy they use where you live, and sells nothing.
1. The model lists
The EPA publishes each ENERGY STAR list as open data. The site reads seven of them through the public interface of the portal on November 13, 2026 and keeps only the rows whose markets include the United States. Rows whose sizes are empty or outside a plausible range in inches are left out of the size tools and counted below. The data is in the public domain (EPA data license).
| List | Models kept | Sizes published | Left out |
|---|---|---|---|
| Refrigerators | 4,420 | height, width, capacity | 19 rows with implausible sizes, 160 wine coolers and freezers |
| Clothes washers | 367 | width; height and depth for 98 | none |
| Clothes dryers | 521 | height, width, depth, drum | rows without sizes or type |
| Dishwashers | 595 | width, depth, place settings | 118 rows with sizes outside 15 to 30 inches (entered in centimeters) |
| Room air conditioners | 595 | height, width, depth, BTU | none |
| Freezers | 624 | capacity only | none |
| Dehumidifiers | 546 | pints a day | none |
2. Will it fit
A model fits when each published size is at or below the size you enter, minus the gap you ask to keep. Nothing is rounded. Width classes ("30 inch") take the models wider than one inch below the nominal size and up to half an inch above it. Where the list gives no depth (refrigerators) or no height (dishwashers), the tools say so instead of guessing.
3. From kWh to dollars
The yearly kWh is the figure the maker certified under the test procedures of 10 CFR part 430. Cost a year = kWh × price ÷ 100, with the price in cents per kWh from EIA table 5.6.A (August 2026, and August 2025 for the comparison). For a room air conditioner the cost per hour divides the yearly figure by the 750 cooling hours of appendix F; for a dehumidifier by the 1,095 hours of appendix X1. Average watts = kWh a year ÷ 8,760 hours × 1,000.
4. A worked example
A 30 by 67 inch opening: 728 full-size certified refrigerators are at most 30 inches wide and 67 inches high. Their median yearly use is 366 kWh. At 18.16 cents, the U.S. average for August 2026, that is $66 a year, or $5.54 a month.
5. Limits
- Only certified models are counted; the many models that meet only the federal minimum are not.
- The test is a laboratory measure: room temperature, settings and use change the real figure.
- A gas dryer's energy is mostly gas, so no electricity cost is shown for it.
- The price is a state average for homes; time-of-use and tiered plans differ.
- The lists are dated; a model added after November 12, 2026 is not counted until the next reading.
Corrections: contact page.