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How much does it cost to run a dishwasher?
At the U.S. average residential price of 18.31¢ per kilowatt-hour (July 2026), running a dishwasher costs about $57.13 a year. Your own bill depends on your state's rate, which ranges from 12.72¢ to 48.00¢ across the country.
- Per cycle
- 22.0¢
- Per day
- 15.7¢
- Per month
- $4.76
- Per year
- $57.13
Assumption: 1.20 kWh per cycle, 5 cycles a week — 312 kWh a year. Includes the machine's own water heating. Heated dry adds roughly 0.4 kWh to each cycle on top of this.
Cost by state
Same appliance, same usage, 51 different prices. Sorted cheapest first.
| State | Rate | Per month | Per year |
|---|---|---|---|
| Louisiana | 12.72¢ | $3.31 | $39.69 |
| Nevada | 12.77¢ | $3.32 | $39.84 |
| Utah | 13.12¢ | $3.41 | $40.93 |
| North Dakota | 13.41¢ | $3.49 | $41.84 |
| Tennessee | 13.71¢ | $3.56 | $42.78 |
| Idaho | 13.73¢ | $3.57 | $42.84 |
| Nebraska | 13.78¢ | $3.58 | $42.99 |
| Kentucky | 13.81¢ | $3.59 | $43.09 |
| Arkansas | 14.33¢ | $3.73 | $44.71 |
| Oklahoma | 14.35¢ | $3.73 | $44.77 |
| Wyoming | 14.36¢ | $3.73 | $44.80 |
| Mississippi | 14.54¢ | $3.78 | $45.36 |
| Washington | 14.71¢ | $3.82 | $45.90 |
| Montana | 14.99¢ | $3.90 | $46.77 |
| Florida | 15.03¢ | $3.91 | $46.89 |
| North Carolina | 15.16¢ | $3.94 | $47.30 |
| Kansas | 15.27¢ | $3.97 | $47.64 |
| South Dakota | 15.37¢ | $4.00 | $47.95 |
| Arizona | 15.38¢ | $4.00 | $47.99 |
| South Carolina | 15.47¢ | $4.02 | $48.27 |
| West Virginia | 15.78¢ | $4.10 | $49.23 |
| Texas | 15.88¢ | $4.13 | $49.55 |
| Oregon | 15.97¢ | $4.15 | $49.83 |
| Iowa | 15.99¢ | $4.16 | $49.89 |
| Missouri | 16.09¢ | $4.18 | $50.20 |
| New Mexico | 16.09¢ | $4.18 | $50.20 |
| Georgia | 16.27¢ | $4.23 | $50.76 |
| Alabama | 16.40¢ | $4.26 | $51.17 |
| Indiana | 16.73¢ | $4.35 | $52.20 |
| Colorado | 17.00¢ | $4.42 | $53.04 |
| Minnesota | 17.45¢ | $4.54 | $54.44 |
| Virginia | 17.55¢ | $4.56 | $54.76 |
| Delaware | 18.48¢ | $4.80 | $57.66 |
| Wisconsin | 19.06¢ | $4.96 | $59.47 |
| Illinois | 19.22¢ | $5.00 | $59.97 |
| Ohio | 19.45¢ | $5.06 | $60.68 |
| Maryland | 21.41¢ | $5.57 | $66.80 |
| Pennsylvania | 21.72¢ | $5.65 | $67.77 |
| Michigan | 23.05¢ | $5.99 | $71.92 |
| Vermont | 23.75¢ | $6.17 | $74.10 |
| Connecticut | 24.16¢ | $6.28 | $75.38 |
| New Jersey | 25.19¢ | $6.55 | $78.59 |
| District of Columbia | 25.21¢ | $6.55 | $78.66 |
| New Hampshire | 26.60¢ | $6.92 | $82.99 |
| Rhode Island | 28.29¢ | $7.36 | $88.26 |
| Alaska | 28.83¢ | $7.50 | $89.95 |
| New York | 29.90¢ | $7.77 | $93.29 |
| Massachusetts | 30.49¢ | $7.93 | $95.13 |
| Maine | 32.41¢ | $8.43 | $101 |
| California | 33.61¢ | $8.74 | $105 |
| Hawaii | 48.00¢ | $12.48 | $150 |
Cutting the number down
- Skipping heated dry and cracking the door open is the largest single saving available on a dishwasher, and it costs nothing.
- A full load uses the same energy as a half load, so waiting until it is full halves the per-dish cost.
- Pre-rinsing under a hot tap usually spends more energy heating water than the machine would have used.
Questions
- How many watts does a dishwasher use?
- Usage is better expressed as 1.20 kWh per cycle, 5 cycles a week.
- How much does a dishwasher cost per month?
- About $4.76 a month at the U.S. average rate, or $57.13 a year.
- Where is it cheapest to run?
- Louisiana, at $39.69 a year, versus $150 in Hawaii — a spread of $110.