Air Con Running Cost Calculator
See what an air conditioner costs to run per hour, per day and across a UK summer. Pick a typical unit or enter your own wattage, then adjust the price and hours to match your home.
Unit
Per hour
18p
Per day
£1.47
Per summer
£44.10
For the same cooling, a fixed split (~750W) costs about 14p/hour vs a portable's 18p/hour — around 25% less to run. Compare split systems →
Estimate only. We assume the compressor runs 75% of the time as a thermostat cycles it. Real cost depends on the room, target temperature and your tariff.