Electricity Cost Calculator

Some items use a lot of electricity and can bring about some unexpected electricity costs. Don't be surprised again, use this free electricity cost calculator to plan ahead and understand how much your items may be costing you to be powered.

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How Much Does Electricity Cost?

Create Date: September 30, 2024

Last Modified Date: November 20, 2024

The cost of electricity varies based on your location. Some neighborhoods can see prices around $0.11 per kilowatt-hour while others may be closer to $0.20 per kilowatt-hour. There is no single rate that applies to everyone, and it is essential to know your local energy rates to get an accurate estimate of costs.

How do you Calculate Electricity Cost?

Calculating electricity cost can be done using the following variables:

  • Power consumption of the device

  • Price of energy where you live

  • Estimated usage time of the device
With these values, you can now use them in this formula to find the total estimated cost of its usage:
An image showing the formula for calculating how much it would cost in energy to operate something for a set amount of time.
Where:
  • EC = Electricity Cost per desired frequency (per day, week, month, etc.)

  • DEC = Daily Energy Consumption (typically in kilowatts)

  • P = Price of electricity

  • UM = Usage Multiplier (per day is 1, per week is 7, etc.)

Understanding Your Results

Your result will display the estimated total cost in electricity for your desired scenario. This number may not be completely accurate due to some locations implements surge pricing and downtime price savings. This result will represent no change in the price of your electricity at all. You can use this tool to evaluate the cost of a single device to be powered or even multiple devices by adding their power consumption together and using that value instead.

How to Use the Electricity Cost Tool

Having a useful tool like our electricity cost tool can be pivotal for saving time and planning ahead. We made our calculator as easy and simple to use as possible. The steps involved with using it include:

  1. Enter the total power consumption you want to evaluate.

  2. Enter your average price of energy.

  3. Enter the estimated amount of time that that much power will be drawn.

  4. Ensure your entries are accurate and that the units of measurement for each are what they should be.

  5. Hit calculate and get your estimated electricity cost!

Example Calculation

Let's say you just bought a new TV and wanted to know how much it would cost you electricity if you left it on all day for a week straight when you will be out of town. To run the TV it consumes 200 watts, your current price of electricity is .15c per kilowatt-hour, and since we will be leaving it on all day we will say the usage time is 24 hours per day.

After entering these values into each field and choosing the proper units to go with them, we hit calculate and get an electricity cost of 0.72c per day! We can easily convert this to cost per week by choosing it from the dropdown menu and get a new electricity cost of the TV running for a week straight of $5.04.

Electricity Cost - Frequently Asked Questions

Heating and cooling systems typically are the most impactful on your electricity bill.

In some parts of the USA, electricity companies will offer reduced rates at night due to it being off-peak with less demand in their service area. Certain parts of New York are part of this pricing system, depending on the exact location and provider.

No, TVs typically use between 50 and 200 watts of energy. If you have a TV that is 200 watts and leave it on all day every day for an entire year, it would cost you about $192 in electricity if your price of electricity is $0.11 per kilowatt-hour. While this is a considerable amount, based on our scenario we can see TVs are not very expensive to run.

Fans use a tiny percentage of the power that an air conditioner uses, so yes, it is much cheaper to run a fan over an AC. However, the effectiveness of a fan cooling a room is limited compared to an AC unit's capabilities.

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