Cost to Run a 3,500-watt air conditioner for 2 hours in Florida
Running a 3,500-watt air conditioner for 2 hours uses 7 kWh and costs $1.09 at $0.155/kWh in Florida. Do that every day and it adds up to $32.55 a month.
Calculate your own cost
- Per hour
- $0.5433.5 kWh
- Per day
- $1.097 kWh
- Per week
- $7.6049 kWh
- Per month (30 days)
- $32.55210 kWh
- Per year
- $396.032,555 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 3,500-watt air conditioner cost per hour?
At $0.155/kWh, it costs $0.543 per hour. The maths: 3,500 W ÷ 1,000 = 3.5 kWh per hour, × $0.155 = $0.543.
How much does it cost per month?
Used 2 hours a day for 30 days, it costs about $32.55 per month and uses 210 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
7 kWh per day, 210 kWh per month and 2,555 kWh per year at 2 hours a day. A kWh is one kilowatt (1,000 W) used for one hour. It is the unit on your electricity bill.
How can I lower the cost?
Set the thermostat to 78°F (26°C), clean the filter monthly and shade sunny windows. Check your bill for the exact rate and enter it above.
Does my electricity rate change the answer?
Yes, a lot. At 10¢ per kWh the monthly cost is $21.00 and at 30¢ it is $63.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Florida
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 3.5 kWh | $0.543 | $16.28 | $198.01 |
| 2 hours | 7 kWh | $1.09 | $32.55 | $396.03 |
| 3 hours | 10.5 kWh | $1.63 | $48.83 | $594.04 |
| 4 hours | 14 kWh | $2.17 | $65.10 | $792.05 |
| 5 hours | 17.5 kWh | $2.71 | $81.38 | $990.06 |
| 6 hours | 21 kWh | $3.26 | $97.65 | $1,188.08 |
| 7 hours | 24.5 kWh | $3.80 | $113.93 | $1,386.09 |
| 8 hours | 28 kWh | $4.34 | $130.20 | $1,584.10 |
| 9 hours | 31.5 kWh | $4.88 | $146.48 | $1,782.11 |
| 10 hours | 35 kWh | $5.43 | $162.75 | $1,980.13 |
| 11 hours | 38.5 kWh | $5.97 | $179.03 | $2,178.14 |
| 12 hours | 42 kWh | $6.51 | $195.30 | $2,376.15 |
| 13 hours | 45.5 kWh | $7.05 | $211.58 | $2,574.16 |
| 14 hours | 49 kWh | $7.60 | $227.85 | $2,772.18 |
| 15 hours | 52.5 kWh | $8.14 | $244.13 | $2,970.19 |
| 16 hours | 56 kWh | $8.68 | $260.40 | $3,168.20 |
| 17 hours | 59.5 kWh | $9.22 | $276.68 | $3,366.21 |
| 18 hours | 63 kWh | $9.77 | $292.95 | $3,564.23 |
| 19 hours | 66.5 kWh | $10.31 | $309.23 | $3,762.24 |
| 20 hours | 70 kWh | $10.85 | $325.50 | $3,960.25 |
| 21 hours | 73.5 kWh | $11.39 | $341.78 | $4,158.26 |
| 22 hours | 77 kWh | $11.94 | $358.05 | $4,356.28 |
| 23 hours | 80.5 kWh | $12.48 | $374.33 | $4,554.29 |
| 24 hours | 84 kWh | $13.02 | $390.60 | $4,752.30 |
How we worked it out
- Energy per hour: 3,500 W ÷ 1,000 = 3.5 kWh
- Cost per hour: 3.5 kWh × $0.155 = $0.543
- Cost per day: × 2 hours = $1.09
- Month and year: × 30 days = $32.55, × 365 days = $396.03
Florida electricity prices
Florida pays about $0.155 per kWh, which is 11% lower than the US average of $0.175. The same air conditioner would cost $36.75 a month at the national average.
What it costs in different places
Same 3,500-watt air conditioner, 2 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $36.75 |
| California | $0.32 | $67.20 |
| Texas | $0.155 | $32.55 |
| New York | $0.25 | $52.50 |
| Florida | $0.155 | $32.55 |
| Illinois | $0.17 | $35.70 |
| Pennsylvania | $0.18 | $37.80 |
| Ohio | $0.17 | $35.70 |
| Washington | $0.115 | $24.15 |
About air conditioner running costs
Window and split air conditioners use a compressor that cycles on and off. Watts depend on size, from about 500 W for a small unit to 3,500 W for a large one.
Typical sizes: 500 W, 900 W, 1,200 W, 1,500 W, 2,000 W, 3,500 W.
How to spend less: Set the thermostat to 78°F (26°C), clean the filter monthly and shade sunny windows.
What this estimate assumes
- The appliance draws its full stated wattage the whole time it is on. Real units with a thermostat cycle off and cost less.
- Wattage is the typical label value, not a measured value. Check the label on your own appliance.
- The rate is an approximate residential average in Florida. Your bill may include fixed fees, tiers or time-of-use pricing. Edit the rate above.
- A month is 30 days and a year is 365 days.