Electricity Cost Calculator - Single Usage

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Estimates the cost of electricity needed to run a device for a particular period.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Power Consumption (Watts), Usage Time (Hours), and Cost per kWh in the units shown.

Step 2

Read Power Consumption (kW), Energy Consumed (kWh), and Total Cost in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Power Consumption (Watts): 60 W; Usage Time (Hours): 2 h; Cost per kWh: 0.15 USD

Power Consumption (kW): 0.06 kW; Energy Consumed (kWh): 0.12 kWh; Total Cost: 0.018 USD

Power Consumption (Watts): 75 W; Usage Time (Hours): 4 h; Cost per kWh: 0.15 USD

Power Consumption (kW): 0.075 kW; Energy Consumed (kWh): 0.3 kWh; Total Cost: 0.045 USD

Power Consumption (Watts): 150 W; Usage Time (Hours): 24 h; Cost per kWh: 0.15 USD

Power Consumption (kW): 0.15 kW; Energy Consumed (kWh): 3.6 kWh; Total Cost: 0.54 USD

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