What does your AC really cost to run?

A free estimate by month, built on your state's real electricity price (U.S. EIA) and 30 years of NOAA climate data, not guesses.

AC monthly running cost calculator

State

Home size (sq ft)

Insulation / tightness

AC efficiency (SEER2)

Electricity price (¢/kWh)

Peak month–

Per year–

Cooling energy–

Month	Cooling degree days	kWh	Cost

Price defaults to the state's EIA average residential price (July 2026 YTD); edit it to match your bill. Climate: NOAA state cooling degree days, 1991–2020 average. How this works.

Phoenix AC costs
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Statewide cooling cost estimates Repair or replace?
Payback on a new, efficient AC