SITE TOOLS // RUNNING COST ESTIMATOR
Appliance Running Cost Calculator
See what an appliance is really costing you to run, based on your electricity price.
ABOUT THIS CALCULATOR
Site electricity adds up quietly – heaters, dryers, lighting and power tools left running all draw against a bill that rarely gets attributed to the job that caused it.
This calculator converts wattage and daily running hours into a cost per day, week, month and year at whatever price per kWh you enter. It is equally useful for costing site power and for answering the running cost questions clients ask about the appliances going into a finished build.
W
HRS
P/KWH
Defaults to the Ofgem price cap rate for Jul-Sep 2026 (26.11p/kWh) – check your own tariff for an exact figure, as fixed deals differ.
Estimated Cost To Run
GBP 0.00
Per Day
GBP 0.00
Per Week
GBP 0.00
Per Month
GBP 0.00
Per Year
Costing the wider job? BuilderLog keeps hours, materials and job costs in one place.
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This is a simplified estimate based on the wattage and usage you enter. Actual costs vary with your specific tariff, standing charges, and real-world appliance efficiency – check your bill or tariff for exact rates.