WattCostCalc

Cost to Run a 3,500-watt air conditioner for 2 hours in New York

Running a 3,500-watt air conditioner for 2 hours uses 7 kWh and costs $1.75 at $0.25/kWh in New York. Do that every day and it adds up to $52.50 a month.

$1.75 for 2 hoursat $0.25/kWh

Calculate your own cost

Hours per day:
$1.75per day
Per hour
$0.8753.5 kWh
Per day
$1.757 kWh
Per week
$12.2549 kWh
Per month (30 days)
$52.50210 kWh
Per year
$638.752,555 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 $0.25/kWh, it costs $0.875 per hour. The maths: 3,500 W ÷ 1,000 = 3.5 kWh per hour, × $0.25 = $0.875.

How much does it cost per month?

Used 2 hours a day for 30 days, it costs about $52.50 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 New York

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour3.5 kWh$0.875$26.25$319.38
2 hours7 kWh$1.75$52.50$638.75
3 hours10.5 kWh$2.63$78.75$958.13
4 hours14 kWh$3.50$105.00$1,277.50
5 hours17.5 kWh$4.38$131.25$1,596.88
6 hours21 kWh$5.25$157.50$1,916.25
7 hours24.5 kWh$6.13$183.75$2,235.63
8 hours28 kWh$7.00$210.00$2,555.00
9 hours31.5 kWh$7.88$236.25$2,874.38
10 hours35 kWh$8.75$262.50$3,193.75
11 hours38.5 kWh$9.63$288.75$3,513.13
12 hours42 kWh$10.50$315.00$3,832.50
13 hours45.5 kWh$11.38$341.25$4,151.88
14 hours49 kWh$12.25$367.50$4,471.25
15 hours52.5 kWh$13.13$393.75$4,790.63
16 hours56 kWh$14.00$420.00$5,110.00
17 hours59.5 kWh$14.88$446.25$5,429.38
18 hours63 kWh$15.75$472.50$5,748.75
19 hours66.5 kWh$16.63$498.75$6,068.13
20 hours70 kWh$17.50$525.00$6,387.50
21 hours73.5 kWh$18.38$551.25$6,706.88
22 hours77 kWh$19.25$577.50$7,026.25
23 hours80.5 kWh$20.13$603.75$7,345.63
24 hours84 kWh$21.00$630.00$7,665.00

How we worked it out

  1. Energy per hour: 3,500 W ÷ 1,000 = 3.5 kWh
  2. Cost per hour: 3.5 kWh × $0.25 = $0.875
  3. Cost per day: × 2 hours = $1.75
  4. Month and year: × 30 days = $52.50, × 365 days = $638.75

New York electricity prices

New York pays about $0.25 per kWh, which is 43% higher 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.

PlaceRate per kWhCost 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 New York. 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.

Read the full calculation methodology

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