Energy - PowerFree

Appliance Running Cost Calculator

Discover how much any single appliance costs to run per month.

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Result

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Formula

Monthly Cost = (Watts × Hours/Day × 30) ÷ 1000 × Grid Rate

Calculates total kWh used by the appliance and multiplies it by your electricity tariff.

Worked Example

Running a 100W TV for 5 hours a day at $0.20/kWh costs $3.00 per month.

Energy Efficiency at Home

Changing usage habits for high-wattage appliances is the fastest way to lower bills.
  • Heaters and AC units are usually the most expensive items.
  • LED bulbs use roughly 90% less energy than old incandescent ones.
  • Smart plugs can help you track actual consumption.

Knowledge is power when it comes to saving energy.

You can also calculate changes using our Electricity Bill Calculator or Monthly Energy Cost Increase Calculator.

Frequently Asked Questions

Where can I find wattage?

Look for a label on the back or bottom of the device or check the manual.

Do heaters use more than fans?

Yes, typically heating appliances use significantly more power than fans or lights.

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