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Cost to run a window air conditioner in Washington
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$0.13/hour
Window Air Conditioner at 900 W in Washington (14.63¢/kWh) · $32.02/month at 8 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.13 | $4.00 | $48.06 |
| 2 h/day | $0.26 | $8.01 | $96.12 |
| 4 h/day | $0.53 | $16.01 | $192.24 |
| 8 h/day | $1.05 | $32.02 | $384.48 |
| 12 h/day | $1.58 | $48.03 | $576.71 |
| 24 h/day | $3.16 | $96.07 | $1,153.43 |
A 8,000-10,000 BTU window unit draws roughly 700-1,000 W while the compressor runs.
Same appliance, nearby states
| State | ¢/kWh | Per month |
|---|---|---|
| Washington | 14.63 | $32.02 |
| Arkansas | 14.37 | $31.45 |
| Mississippi | 14.43 | $31.58 |
| Wyoming | 14.43 | $31.58 |
| Oklahoma | 14.82 | $32.44 |
| North Carolina | 14.95 | $32.72 |
| Florida | 14.99 | $32.81 |
FAQ
How much does it cost to run a window air conditioner in Washington?
At 900 W and 14.63¢/kWh: $0.13 per hour, $1.05 per day and $32.02 per month at 8 h/day.
How does Washington compare with other states?
The same use costs $27.84/month in Nevada (cheapest) and $103.27/month in Hawaii (most expensive); the US average is $39.75.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Window Air Conditioner cost calculator · Electricity cost in Washington
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