Appliance running cost calculator (UK)
Calculate electricity running costs for appliances in the UK per hour, day and year using the Ofgem energy price cap unit rate.
In your browser
Based on the standard Great Britain energy price cap unit rate set by Ofgem. Standing charges are excluded because they apply regardless of appliance usage.
Next in your workflow
Also with the uk electricity cost calculator
About this tool
Calculate exactly how much household appliances cost to run in the UK. Use the current Ofgem standard unit electricity rate in pence/kWh to budget home energy expenses.
How to use it
- 1 Pick a household appliance preset or type the wattage in Watts.
- 2 Adjust your electricity tariff rate in pence per kWh (pre-filled with the current Ofgem price cap).
- 3 Specify the hours or minutes used per day to see running costs per hour, day, week, month, and year.
Questions
How much does a 2kW heater cost to run per hour in the UK?
At the typical Ofgem electricity price cap of 24.5p/kWh, a 2,000 Watt heater costs approximately 49p per hour to run.
How do I calculate appliance running cost?
Divide appliance wattage by 1,000 to get kilowatts (kW), multiply by hours of use, and multiply by your electricity unit rate in pence per kWh.
What is the UK Ofgem electricity price cap rate?
The standard domestic electricity price cap for Great Britain typically hovers between 24p and 29p per kWh for direct debit customers.
How much does an electric fan heater cost to run per hour?
A 2,000W (2 kW) portable fan heater running at full power uses 2 kWh of electricity per hour, costing approximately 49p to 58p per hour in the UK.
Is my data uploaded?
No. This tool runs in your browser, so your text and files never reach our server.
Is this tool free?
Yes. It’s free to use with no sign-up and no limits for normal use.
More in Calculators & converters
- UK salary tax calculator New Calculate UK take-home pay, income tax, National Insurance and student loan deductions for 2024-26.
- UK VAT calculator New Add or remove UK VAT at 20%, 5% or custom rates with instant net, VAT and gross totals for invoices.
- UK Stamp Duty (SDLT) calculator New Calculate Stamp Duty Land Tax (SDLT) in England and Northern Ireland for first-time buyers, home movers and additional properties.
- UK holiday entitlement calculator New Calculate statutory UK annual leave and holiday entitlement for full-time, part-time and irregular hours workers.
- UK student loan calculator New Calculate UK student loan repayments for Plan 1, Plan 2, Plan 4 Scotland, Plan 5 and Postgraduate loans based on your salary.
- UK redundancy pay calculator New Calculate statutory UK redundancy pay based on age, weekly pay and length of service under current HMRC limits.