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Window AC UnitCost: Purchase Price & Running Cost
A standard window air conditioning unit (8,000–10,000 BTU) draws around 1,200 watts. Larger units for bigger rooms can use up to 1,500 watts.
Average Purchase Price
$150–$600
8,000–12,000 BTU units
watts
hrs/day
$/kWh
Daily Cost
$1.54
9.6 kWh
Monthly Cost
$46.08
288.0 kWh
Yearly Cost
$560.64
3504.0 kWh
For perspective...
At $560.64/year, this is a significant energy cost — equivalent to about 11 monthly grocery trips. Consider efficiency upgrades.
Energy-Saving Tips for Your Window AC Unit
- Clean the filter monthly to maintain efficiency
- Use a timer so it's not running while you're out
- Keep curtains closed on sun-facing windows to reduce cooling load