Life Calculator
Understand the numbers · Make life easier

Appliance energy use

Estimate electricity consumed by one appliance over a period. Use realistic average power when the appliance cycles on and off.

Start with your own numbers

Editable example

An example is filled in. Replace it with your own data to calculate.

Enter appliance watts, daily hours and number of days used.

Enter average power (watts), for example 1000. Use the displayed unit; replace the example with your own value.
Enter hours used per day, for example 3. Use the displayed unit; replace the example with your own value.
Enter number of days, for example 30. Use the displayed unit; replace the example with your own value.

Results update when inputs are complete. A plan is kept only when you save it. Inputs and results are not uploaded.

Saved plans →

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Example result

Estimated electricity use

90kWh

The result is electricity use in kWh, not cost. Use the appliance electricity-cost tool for money.

Power × time. Nameplate power is not continuous measured power. This tool does not calculate Taipower tiered bills.

Method and scope

Energy in kWh equals watts times daily hours times days divided by 1,000. A kWh is an energy amount, while watts measure power.

The result is estimated consumption only. Use the electricity-cost tool to apply a price per kWh.

Nameplate power can differ from operating average power. Taiwan Taipower tiered, summer and time-of-use charges are not calculated here.

What this helps you do

Estimate electricity consumed by one appliance over a period. Use realistic average power when the appliance cycles on and off.

What to enter

Start with average power (watts), then fill the other relevant fields in the units shown. The field hints explain the required format and examples.

How the calculation works

Energy in kWh equals watts times daily hours times days divided by 1,000. A kWh is an energy amount, while watts measure power.

Worked example

A 200 W appliance used five hours a day for ten days uses 10 kWh. That is ten electricity units, not a price.

Understanding the answer

The result is estimated consumption only. Use the electricity-cost tool to apply a price per kWh.

Scope and limitations

Nameplate power can differ from operating average power. Taiwan Taipower tiered, summer and time-of-use charges are not calculated here.

Keep it handy for next time

Add Appliance energy use to your home screen

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  1. iPhone: Open in Safari, tap Share → Add to Home Screen, then confirm.
  2. Android: Open in Chrome and choose Install app or Add to Home screen from the menu.
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