basic

Monthly Electricity Cost for an Appliance Calculator

Cost = (W / 1000) × h/day × 30 × rate.

Estimate the monthly electricity cost of running a home appliance: Cost = (rated_watts / 1000) × hours_per_day × days_per_month × rate_per_kWh. Reports monthly kWh consumed and dollar cost. Useful for budgeting and comparing appliance running costs.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

W
h/day
days
$ /kWh

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Cost = W/1000 · h · days · rate.

In depth

Estimate the monthly electricity cost of running a home appliance: Cost = (rated_watts / 1000) × hours_per_day × days_per_month × rate_per_kWh. Reports monthly kWh consumed and dollar cost. Useful for budgeting and comparing appliance running costs.