Calculators
Electricity Cost Calculator
Estimate energy use and cost from constant power, daily hours and your tariff.
Processed locally
Constant-load estimate only. No live tariff, standing charge, taxes or consumption tiers. Use one currency throughout.
Your answer will appear here.
Help and method
Energy in kWh = watts ÷ 1000 × hours per day × days. Cost = kWh × entered price per kWh.
EIAMethods and reliabilityWorked example
An example you can try or adapt to your own values.
- Currency
- USD
- Power (W)
- 1000
- Hours per day
- 2
- Days
- 30
- Price per kWh
- 0.2
Result
Energy (kWh): 60; Total cost: USD 12.00