SuperCalX

Electricity Cost Calculator

Calculate the cost of running an electrical appliance.
Calculator
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Analysis
Interpretation of the current calculator output

Enter values to see detailed analysis and insights.

How to Use

Step-by-step instructions
  1. 1Enter the appliance wattage.
  2. 2Enter the daily usage in hours.
  3. 3Enter your electricity rate (default $0.15/kWh).
  4. 4The calculator will estimate daily, monthly, and yearly costs.

Energy Cost

Calculates energy consumption in kilowatt-hours (kWh) and multiplies by the electricity rate.
Cost = (Watts x Hours / 1000) x Rate

Variables:

WattsPower rating of appliance
HoursUsage time
RateCost per kWh

Example

100W Bulb

Inputs:

Watts:100
Hours:5
Rate:$0.15

Steps:

  1. 1.kWh = (100 * 5) / 1000 = 0.5 kWh
  2. 2.Cost = 0.5 * 0.15 = $0.075 per day
Result:
$0.08 / day

Frequently Asked Questions

Where do I find wattage?

It is usually printed on a label on the back or bottom of the appliance.