Free Air Conditioner Electricity Calculator

AC Electricity Cost Calculator

Estimate how many kilowatt-hours your air conditioner uses and calculate AC electricity cost per hour, day, month and year using measured power or AC size and SEER2 efficiency.

Calculate AC Electricity Cost

AC Electricity Usage

Convert AC power use into actual electricity cost.

If you primarily want a runtime-based estimate, compare this calculation with our AC running cost calculator . For efficiency terminology and equipment ratings, review our SEER2 ratings guide .

Calculate AC kWh Usage and Electricity Cost

Choose whether to enter measured power or estimate electrical demand from AC tonnage and SEER2.

Calculation Method

Air Conditioner Size

SEER2 Rating Use the equipment rating if known.

Measured AC Power Draw (kW) Use measured or documented electrical demand.

Average AC Runtime Per Day

Electricity Rate ($ / kWh) Replace the example value with your actual electricity rate.

AC Operating Days Per Month

Estimated Cooling Days Per Year

Estimated Average Cooling Load Used only when estimating from tonnage and SEER2.

Estimated Monthly AC Electricity Cost - -

This estimate covers air-conditioner electricity consumption only. Actual utility bills can differ because of weather, thermostat settings, equipment cycling, ducts, maintenance, utility fees and other household electrical loads.

- Approx. AC Power Draw

Cost Per Hour -

Cost Per Day -

Annual AC Cost -

Annual AC Energy -

AC electricity use higher than expected?

Request HVAC help below if you want to provide your location and information about the air conditioner.

Calculator note: measured electrical demand usually gives a more direct electricity-cost estimate than estimating power from tonnage and seasonal efficiency. SEER2-based calculations remain useful for planning but should not be treated as real-time wattage measurements.