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Cost to run a central air conditioner
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$0.60/hour
Central Air Conditioner at 3,500 W and 17¢ per kWh · 28.00 kWh per day at 8 h/day
Your central air conditioner
A 3-ton central AC typically draws 3,000-4,000 W while running; SEER rating and duct losses matter.
Running cost by electricity price (3,500 W, 8 h/day)
| Price/kWh | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| 10¢ | $0.350 | $2.80 | $85.12 | $1,022 |
| 13¢ | $0.455 | $3.64 | $110.66 | $1,329 |
| 15¢ | $0.525 | $4.20 | $127.68 | $1,533 |
| 17¢ | $0.595 | $4.76 | $144.70 | $1,737 |
| 20¢ | $0.700 | $5.60 | $170.24 | $2,044 |
| 25¢ | $0.875 | $7.00 | $212.80 | $2,555 |
| 30¢ | $1.050 | $8.40 | $255.36 | $3,066 |
| 35¢ | $1.225 | $9.80 | $297.92 | $3,577 |
FAQ
How much does it cost to run a central air conditioner?
At 3,500 W for 8 hours a day and 17¢/kWh: about $0.60 per hour, $4.76 per day and $144.70 per month.
How many watts does a central air conditioner use?
A 3-ton central AC typically draws 3,000-4,000 W while running; SEER rating and duct losses matter.
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