Room climate · Electricity cost calculator
How much does Split air conditioner cost to run?
Estimate the electricity cost of a split air conditioner based on your typical daily use.
Example calculation
Typical values for Split air conditioner
These values are a useful starting point for the calculator, but they are not guaranteed consumption figures for your specific model.
Power
700 W
Duration/use
240 min
Uses/week
5
Example/year
€254.80
About the data
Typical value. Inverter split systems continuously adjust their power; room size, outdoor temperature and the target temperature can significantly change actual consumption.
Example using €0.35/kWh. This works out to approximately €0.98 per use, €21.23 per month and 728.0 kWh per year.
Your values
Split air conditioner electricity cost calculator
Adjust the suggested values to match your own device, electricity tariff and actual usage.
Adjust usage
Typical value – check the rating on your device if possible.
Suggested starting value – adjust it to match your usage.
You can find your electricity price on your electricity bill.
Choose week or month. Half steps such as 0.5 are supported.
Your yearly cost
€21.23
Per month
€4.90
Per week
Choose how often you would use the device in the selected period.
Calculation basis
700 W ÷ 1.000 × 240 min ÷ 60 × 5 per week × 52 × €0.35/kWh
Context: Estimated values – actual consumption may vary.
Energy-saving tip
Choose a moderate target temperature, keep windows closed and clean the filters regularly.
Practical guideHow much electricity does a split air conditioner use?
Modern inverter split systems continuously adjust output to cooling demand. Rated power is therefore only a starting point; room size, insulation, outdoor temperature and target temperature affect operation.
At an average 700 watts for four hours, the simple calculation gives 2.8 kWh or €0.98 per cooling day at €0.35 per kWh.
Seasonal electricity costs compared
Uses per week are shown as an annual average and spread individual cooling days across the year.
26 cooling days/year
occasional use
€25.48
Electricity cost per year
0.5 Uses per week
52 cooling days/year
regular summer use
€50.96
Electricity cost per year
1 Uses per week
104 cooling days/year
frequent use
€101.92
Electricity cost per year
2 Uses per week
Which power figure should I use?
Use electrical input power, not the much larger cooling-capacity figure. For an inverter system, measured kWh across several typical days is especially useful. SEER or seasonal-efficiency information also helps when comparing appliances.
Split system or portable air conditioner?
A portable unit is flexible, but often loses efficiency through its exhaust hose and window opening. Compare the same room size and intended usage time.
Calculate a portable unit's cost >Frequently asked questions about split air conditioners
What does a four-hour cooling day cost?
At an average 700 watts and €0.35 per kWh, the simple calculation is about €0.98. An inverter changes its power during operation.
Why can consumption vary so much?
Outdoor temperature, room size, insulation, sunlight, target temperature and appliance efficiency all affect how hard and how long the system runs.
How do I calculate summer-only use?
Divide expected cooling days per year by 52 and enter that average as uses per week.
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