Cost to Run a Central Air Conditioner
A central AC unit for a typical 2000 sq ft home
Wattage
3,500W
Daily Usage
8h
Monthly Cost*
$144.65
Annual Cost*
$1,759.88
* At national average rate of 17.22¢/kWh
Cost to Run Central Air Conditioner by State
From cheapest (Idaho: $93.66/mo) to most expensive (Hawaii: $362.71/mo).
| # | State | Rate | Monthly | Annual |
|---|---|---|---|---|
| 1 | Idaho | 11.15¢ | $93.66 | $1,139.53 |
| 2 | Washington | 11.26¢ | $94.58 | $1,150.77 |
| 3 | Utah | 11.41¢ | $95.84 | $1,166.10 |
| 4 | Wyoming | 11.72¢ | $98.45 | $1,197.78 |
| 5 | North Dakota | 12.43¢ | $104.41 | $1,270.35 |
| 6 | Louisiana | 12.52¢ | $105.17 | $1,279.54 |
| 7 | Oregon | 12.55¢ | $105.42 | $1,282.61 |
| 8 | Montana | 12.81¢ | $107.60 | $1,309.18 |
| 9 | Oklahoma | 12.82¢ | $107.69 | $1,310.20 |
| 10 | Tennessee | 12.91¢ | $108.44 | $1,319.40 |
| 11 | Arkansas | 13.04¢ | $109.54 | $1,332.69 |
| 12 | Nebraska | 13.08¢ | $109.87 | $1,336.78 |
| 13 | Kentucky | 13.19¢ | $110.80 | $1,348.02 |
| 14 | West Virginia | 13.44¢ | $112.90 | $1,373.57 |
| 15 | Mississippi | 13.54¢ | $113.74 | $1,383.79 |
| 16 | South Dakota | 13.74¢ | $115.42 | $1,404.23 |
| 17 | Missouri | 13.78¢ | $115.75 | $1,408.32 |
| 18 | North Carolina | 14.09¢ | $118.36 | $1,440.00 |
| 19 | Georgia | 14.27¢ | $119.87 | $1,458.39 |
| 20 | South Carolina | 14.43¢ | $121.21 | $1,474.75 |
| 21 | Virginia | 14.64¢ | $122.98 | $1,496.21 |
| 22 | Arizona | 14.78¢ | $124.15 | $1,510.52 |
| 23 | Alabama | 14.87¢ | $124.91 | $1,519.71 |
| 24 | Nevada | 14.92¢ | $125.33 | $1,524.82 |
| 25 | Delaware | 14.94¢ | $125.50 | $1,526.87 |
| 26 | Texas | 15.06¢ | $126.50 | $1,539.13 |
| 27 | Iowa | 15.14¢ | $127.18 | $1,547.31 |
| 28 | Ohio | 15.21¢ | $127.76 | $1,554.46 |
| 29 | Kansas | 15.28¢ | $128.35 | $1,561.62 |
| 30 | New Mexico | 15.34¢ | $128.86 | $1,567.75 |
| 31 | Indiana | 15.42¢ | $129.53 | $1,575.92 |
| 32 | Colorado | 15.56¢ | $130.70 | $1,590.23 |
| 33 | Minnesota | 15.63¢ | $131.29 | $1,597.39 |
| 34 | Florida | 16.22¢ | $136.25 | $1,657.68 |
| 35 | Illinois | 16.27¢ | $136.67 | $1,662.79 |
| 36 | Maryland | 16.57¢ | $139.19 | $1,693.45 |
| 37 | Wisconsin | 17.38¢ | $145.99 | $1,776.24 |
| 38 | Pennsylvania | 18.36¢ | $154.22 | $1,876.39 |
| 39 | New Jersey | 18.48¢ | $155.23 | $1,888.66 |
| 40 | Michigan | 19.34¢ | $162.46 | $1,976.55 |
| 41 | Vermont | 21.43¢ | $180.01 | $2,190.15 |
| 42 | Alaska | 24.21¢ | $203.36 | $2,474.26 |
| 43 | New York | 24.33¢ | $204.37 | $2,486.53 |
| 44 | New Hampshire | 25.78¢ | $216.55 | $2,634.72 |
| 45 | Maine | 26.37¢ | $221.51 | $2,695.01 |
| 46 | Rhode Island | 28.08¢ | $235.87 | $2,869.78 |
| 47 | Massachusetts | 28.58¢ | $240.07 | $2,920.88 |
| 48 | Connecticut | 29.98¢ | $251.83 | $3,063.96 |
| 49 | California | 31.22¢ | $262.25 | $3,190.68 |
| 50 | Hawaii | 43.18¢ | $362.71 | $4,413.00 |
Energy Saving Tips for Central Air Conditioner
- Set your thermostat to 78F when home and higher when away to reduce cooling costs by 10-15%.
- Use ceiling fans to create a wind-chill effect, allowing you to raise the thermostat by 4F.
- Keep blinds and curtains closed during peak sun hours.
- Ensure proper insulation and seal air leaks around windows and doors.
- Schedule regular maintenance to keep your cooling system running efficiently.
- Consider upgrading to an Energy Star rated model for 15-20% energy savings.
Related Cooling Appliances
Frequently Asked Questions
How much electricity does a Central Air Conditioner use?
A typical Central Air Conditioner uses 3500 watts and runs about 8 hours per day, consuming 28.00 kWh daily.
How much does it cost to run a Central Air Conditioner per month?
At the national average electricity rate of 17.22¢/kWh, running a Central Air Conditioner costs approximately $144.65 per month.
Where is it cheapest to run a Central Air Conditioner?
Idaho has the lowest cost at $93.66/month, while Hawaii is the most expensive at $362.71/month.
Was this data helpful?
Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)