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How Much Does It Cost to Run a Dishwasher in New Hampshire? (2026)
A dishwasher draws heavy power only while heating water and during the drying phase. Over a full cycle it averages 1 to 2 kWh, which is usually cheaper than washing the same dishes by hand with hot water.
A typical dishwasher (1,500 W) costs $0.41 per hour, or about $12.15 per month at 1 hours a day in New Hampshire. Average running cost
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low (1,200 W) | $0.32 | $0.32 | $9.72 | $118.26 |
| Typical (1,500 W) | $0.41 | $0.41 | $12.15 | $147.83 |
| High (2,400 W) | $0.65 | $0.65 | $19.44 | $236.52 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 1 h/day ≈ 548 kWh per year.
One hour of a dishwasher (1.5 kWh) is the same electricity as
- 8.3km in an electric car
- 15hours of TV
- 33hours of a laptop
- 167hours of an LED bulb
In New Hampshire, with electricity at $0.27 per kWh (source: EIA Table 5.6.A, 2026-06), a typical dishwasher costs $0.41 per hour and about $147.83 per year at 1 hours a day. That is about 50% more than the national average for the US ($8.10 per month), because electricity in New Hampshire costs $0.27 per kWh against $0.18 nationally. Each $1.00 of electricity buys roughly 2.5 hours of use.
How to lower the cost of running a dishwasher
- Skip the heated dry option and open the door at the end of the cycle instead.
- Only run full loads, and use the eco program.
- Scrape plates but do not pre-rinse under hot water.
- Connect to cold water if your dishwasher has its own heater and your hot water is electric.
In standby it draws about 1 W, which adds roughly 9 kWh ($2.37) per year if it is never unplugged.
Frequently asked questions
Is a dishwasher cheaper than washing by hand?
Usually yes, if you run full loads. Hand washing with running hot water uses more energy and far more water.
How much does a dishwasher cycle cost?
About 1 to 1.5 kWh per cycle on a normal program. Use the hourly figure above as a per-cycle estimate.
What uses the most power in a dishwasher?
The water heating element, followed by the heated drying cycle.
Compare with
Cost by region
US states
- Alabama
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- Delaware
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- Illinois
- Indiana
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- Kansas
- Kentucky
- Louisiana
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- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Canadian provinces
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