U.S. residential electricity EIA data: July 2026 US average 18.3¢/kWh Updated
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Cooling · Kansas

How Much Does It Cost to Run a Window Air Conditioner in Kansas?

The short answer

In Kansas, a window air conditioner drawing 900W costs about $0.14 per hour — roughly $33.44 a month if it runs 8 hours a day.

That’s based on Kansas’s average residential rate of 15.3¢/kWh (EIA, July 2026), 17% below the US average.

Source: U.S. EIA, July 2026 data · Updated

Window Air Conditioner cost by daily use in Kansas

Cost at 15.3¢/kWh, the Kansas average (EIA, Jul 2026)
Daily usekWh/monthPer dayPer monthPer year
1 hour/day 27.4 $0.14 $4.18 $50.16
2 hours/day 54.8 $0.27 $8.36 $100
4 hours/day 109.5 $0.55 $16.72 $201
8 hours/day 219.0 $1.10 $33.44 $401
12 hours/day 328.5 $1.65 $50.17 $602
24 hours/day 657.1 $3.30 $100 $1,204

Kansas vs other states

At typical use, a window air conditioner costs $401 a year in Kansas — $860 less than in Hawaii and $67.01 more than in Louisiana.

Kansas has the 17th-cheapest residential electricity of the 50 states and DC. Kansas electricity rates · all states ranked

Electricity price trend in Kansas

15.3¢/kWh in July 2026 — ▲ +5.6% from a year earlier.

How to lower the cost of running a window air conditioner

Window air conditioners cool a single room and are far cheaper to run than central AC when you only need one or two rooms cool. Wattage scales with capacity: small 5,000 BTU units draw around 450–500W, a 10,000 BTU unit around 900W, and large 15,000+ BTU units 1,300–1,500W. ENERGY STAR models with inverter compressors can use 20–35% less. The compressor cycles with the thermostat, so enter the hours it actually runs.

  • Pick the right size — an oversized unit cycles constantly and dehumidifies poorly.
  • Seal the gaps around the unit with foam strips to keep hot air out.
  • Clean the washable filter every two weeks in peak season.

Questions

Frequently asked questions

How much does it cost to run a window air conditioner for 24 hours in Kansas?

Running a 900W window air conditioner for 24 hours uses about 21.6 kWh, which costs about $3.30 at Kansas’s average rate of 15.3¢/kWh.

How many kWh does a window air conditioner use per month?

At 8 hours a day, a typical window air conditioner uses about 219 kWh a month. In Kansas that costs $33.44.

Is it expensive to run a window air conditioner in Kansas?

Kansas has the 17th-cheapest residential electricity of the 50 states and DC at 15.3¢/kWh — cheaper than most. Running a window air conditioner here costs about $401 a year at typical use, compared with $481 at the national average rate.

What is the electricity rate in Kansas right now?

The average residential electricity rate in Kansas was 15.3¢ per kWh in July 2026, according to the latest EIA data — up 5.6% from a year earlier.

Is a window AC cheaper to run than central air?

For cooling one or two rooms, yes. A 900W window unit uses about a quarter of the power of a typical 3,500W central system.

Window Air Conditioner costs in nearby states

Cheapest and priciest states

Comparisons

Sources & method