ELECTRICITY COST CALCULATOR

Turn watts into a monthly cost.

Use the label on your appliance and the rate on your bill for the closest estimate.

Editable estimate

Calculate running cost

Results update as you type.

Power wattsDaily use hours/dayDuty cycle percentElectricity rate $/kWhEIA May 2026 U.S. average · editable

Estimated monthly cost—30-day month

Daily—

Annual—

Daily energy—

Annual energy—

kW × effective runtime × rate. Effective runtime = hours/day × duty cycle.

Ways to lower this cost

See all savings tips →

Was this useful?

Compare your result

Monthly cost by daily useSame watts, duty cycle and rate

Monthly cost by electricity rateSame appliance use; EIA state benchmarks

Data updatedEIA residential prices · May 2026View Table 5.6.A

Choose useful inputs

Power is electrical input, not output capacity. Daily use is time switched on. Duty cycle models cycling or variable loads. Rate is the price per kWh on your bill.