Electricity Cost Calculator
Estimate energy consumption and electricity cost.
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Formula / Calculation Method
kWh = kilowatts × hours per day × days; cost = kWh × rate.
Example Calculation
1,000 watts used 2 hours per day for 30 days consumes 60 kWh.
Understanding the Result
Assumes constant power while running. Standing charges, demand tariffs and variable duty cycles are excluded.
What is the Electricity Cost Calculator?
Estimate energy consumption and electricity cost.
How to Use
Enter appliance power, select watts or kilowatts, then enter daily hours, days and the price per kWh.
Select Calculate after entering your values. Text tools update as you type. Reset restores the starting fields.
Interpreting the Calculation
The energy result is measured in kilowatt-hours, which is power multiplied by time. Use actual average consumption for devices that cycle on and off rather than assuming nameplate maximum power all day.
Common Questions
Does this include the utility’s fixed charges?
No. It estimates usage charges only, excluding standing charges, demand charges, tax and tariff tiers.
What assumptions does this tool use?
Assumes constant power while running. Standing charges, demand tariffs and variable duty cycles are excluded.
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