Home & energy
Electricity cost
Find out what an appliance costs to run.
Your result
Estimated cost
18
Energy used (kWh)60
Daily cost0.6
Rounded for display. See method below.How it works
Energy = watts ÷ 1,000 × hours per day × days. Cost = energy × unit price.
What to keep in mind
Assumes constant power. Use average power for cycling appliances; standing charges are excluded.
Worked example
Appliance power (W): 1000; Hours per day: 2; Days of use: 30; Price per kWh: 0.3.
Estimated cost: 18 · Energy used (kWh): 60 · Daily cost: 0.6.