Air Conditioner Electricity Cost Calculator
See what any appliance adds to your electricity bill: pick a device or enter watts, hours per day and your price per kWh to get energy use and cost per day, month and year.
Result
This page opens the electricity cost calculator preset for an air conditioner: 1500 watts is a realistic average draw for a mid-size split or window unit while it is actively cooling. Set how many hours a day it runs and your electricity price per kWh, and the calculator shows the energy used and what it costs per day, month and year.
The math is simple: 1500 W for 8 hours is 12 kWh per day, or about 360 kWh over a 30-day month — with electricity at 0.15 per kWh that is 54 in your currency every month of the cooling season. Air conditioning is usually one of the biggest single lines on a summer bill, which is why an hour more or less per day is clearly visible in the monthly total.
Keep in mind that 1500 W is a typical value, not yours: check the label or the spec sheet of your unit, and note that inverter models throttle down once the room is cool, so their effective average can be well below the rated maximum. Raising the thermostat a degree or two, shading windows and cleaning filters all cut the hours the compressor actually works. Everything is calculated locally in your browser.