What Does It Cost to Run a Central AC in Florida?

Running a central ac in Florida costs about $129.19 a month — $1571.84 a year — at the state's average rate of 15.38 ¢/kWh. That's roughly $402.67 a year less than a household paying the national average pays for the exact same central ac. The estimate assumes a typical 3,500-watt central ac running 8 hours/day, at the all-in average rate (before separately billed taxes and fixed fees).

Average wattage assumption
3,500 W
Typical usage assumption
8 hours/day
Estimated monthly electricity use
840.0 kWh
Estimated monthly cost
$129.19
Estimated yearly cost
$1571.84

Key metrics

MetricValue
Average wattage assumption3,500 W
Typical usage assumption8 hours/day
Estimated monthly electricity use840.0 kWh
Estimated monthly cost$129.19
Estimated yearly cost$1571.84

Central AC cost vs U.S. average

Florida average rate
15.38 ¢/kWh
Florida monthly cost
$129.19
U.S. monthly cost
$162.29
Monthly difference
-$33.10

At the state average rate, a central ac in Florida costs $33.10 less a month than it would at the U.S. average rate.

How much electricity does a central ac use?

A central ac draws roughly 2,000-5,000 W; we use 3,500 watts running 8 hours/day. That comes to 28.0 kWh a day — 840.0 kWh a month, or 10220.0 kWh over a year — using kWh = watts × hours ÷ 1000.

Central air is usually the single biggest line on a summer electric bill. What you pay comes down to your home's size, the system's efficiency, and how hot your climate runs — but your state's rate sets the price of every hour it's blowing cold. Florida prices that energy at 15.38 ¢/kWh, against a 19.32 ¢/kWh national average.

Central AC operating cost estimate in Florida

Time periodEnergy useCost
Per hour3.50 kWh$0.54
Per day28.0 kWh$4.31
Per month840.0 kWh$129.19
Per year10220.0 kWh$1571.84

These figures use the all-in average rate. Your actual bill can run higher when separately billed taxes, seasonal pricing, and fixed monthly fees apply.

What changes the cost the most?

Two things move this number: your state's rate, which you can't change, and how hard the appliance works, which you often can. For a central ac, that mostly comes down to home square footage, SEER rating, humidity and summer temperatures.

Using yours more lightly or heavily than our assumption? The state calculator and usage-cost pages below model your exact scenario at the same rate.

For calculator-style comparisons, use the Central AC calculator in Florida to compare light, typical, and heavy usage profiles.

Comparison entry points

Browse related comparisons from the energy comparison hub:

City pages for selected metros in Florida

These city pages add local rate context for the same appliance assumptions. City values are estimates.

CityCity rateMonthly estimateYearly estimateMore detail
Jacksonville15.69 ¢/kWh$131.78$1581.31City electricity context
Miami15.53 ¢/kWh$130.48$1565.81City electricity context
Tampa15.53 ¢/kWh$130.48$1565.81City electricity context
Orlando15.53 ¢/kWh$130.48$1565.81City appliance page
St. Petersburg15.53 ¢/kWh$130.48$1565.81City electricity context
Hialeah15.38 ¢/kWh$129.19$1550.30City electricity context

City electricity pages focus on local rate context. The table above uses the statewide average rate.

Related appliance cost pages for Florida

State cost and bill pathways for Florida

Historical and trend pages

Fixed-usage and calculator pathways

Appliance and estimator pathways

State comparison pathways for Florida

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Consumer electricity drivers

Source & Method

Source: U.S. Energy Information Administration (EIA) Retail Sales of Electricity. Updated: April 2026. Estimates use the EIA average all-in residential rate (delivery included); they don't add separately billed taxes, fixed charges, or other utility fees, which vary by utility. For how rates and estimates are defined, see the methodology hub.

Disclaimers

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