Air conditioner running cost calculator
Work out what any air conditioner costs to run — from its rated power (or its BTU and efficiency), your hours of use and your electricity rate. The same cost-per-hour method we rank units by.
£0.24
per hour
£1.96
per day (8h)
£58.80
per month
£715.40
per year
Based on 1,000 W drawn at £0.245/kWh, 8h/day.
Cost per hour = rated power (kW) × electricity rate. Monthly/yearly figures assume the same hours every day; air conditioning is usually seasonal, so real annual cost is lower.
Learn more in the running-cost guide, or work out the right size with the BTU calculator.
