AC Running Cost Calculator

Convert the AC wattage to kilowatts, multiply by daily hours and your rate, then show monthly cost. Calculate it clearly with Figur.

How the ac running cost calculator works

Convert the AC wattage to kilowatts, multiply by daily hours and your rate, then show monthly cost.

Method and assumptions

Energy cost is estimated by multiplying kilowatts by hours used and your electricity rate. The calculation runs in your browser.

  • Wattage, hours used, and the electricity rate stay constant for the period.
  • Fixed charges, time-of-use pricing, taxes, and changing power draw are excluded unless entered separately.
  • For better accuracy, use the appliance label and the rate on your latest utility bill.

Sources and references

Worked example

A 1,200 W AC for 8 hours a day at $0.16/kWh.

About $46.08 per month.

Frequently asked questions

How many watts does an AC use?

Window units run 500–1,500 W; central systems use much more.

Does the thermostat matter?

Yes. A higher setpoint means fewer running hours and lower cost.

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