Electricity Cost Calculator (Single Usage)

Electricity Cost Calculator calculates the electricity cost of your home appliances by considering the total power consumption and the energy price per kWh of your country. The calculator gives you an idea on which appliances consume the most electricity in your house. You can calculate the electricity cost for only one appliance or as many appliances as you want.

Check out this category if you need more calculators for everyday life. On the other hand, if you are interested in health, you can find lots of posts in health section, or maybe you want to explore our Annual Income Calculator, or some other from finance category.

Who Invented Electricity?

Everything started in the mid-1700s, when an American scientist, Benjamin Franklin, became interested in testing his idea about electricity. In fact, from the very beginning he believed that electrical energy has two elements: positive and negative size. Therefore, Franklin claimed that electricity is produced between those two elements.

As a result, one day, he conducted an experiment with a kite. He was sure that lightning is nothing more than electricity, and he wanted to prove that. Thus, Franklin attached a piece of metal to the kite and released it into the air. Consequently, the metal piece started pulling lightning and the lightning transferred from the clouds through the kite. A few decades later, Thomas Edison used Franklin’s approach and created the first light bulb. However, the term “electricity” was found in use way before. For instance, William Gilbert and Thomas Browne wrote several books and conducted many experiments on electricity beforehand.

Electricity Cost Around the World – Chart

The average electricity around the world costs 0.138 USD per kilowatt-hour for households and 0.125 USD per kWh for businesses. Therefore, the chart below shows the consumption of electrical energy in 15 random countries (stats are related to June 2021).

Units of Electricity

Electricity usage and energy consumption are measured in watts. Thus, Watt is an electric unit that equals 1 Amper under the pressure of 1 Volt. However, Watt is a standard electric unit for calculating the energy consumption of a device. Generally, Watt is only used for smaller devices that do not require a lot of electric power. On the other hand, heavier and more powerful devices need more energy, and thus we measure their energy consumption in kilowatt (kW).

1 kW = 1000 Watts

If you measure electricity consumption over time, we use a different measurement unit, called Watthour (Wh).
1 Wh = Energy of 1 Watt for 1 Hour

Typical household electricity consumption is calculated in kilowatt hours (kWh).
1 kWh = 1000 Wh

Electricity Cost of Common Home Appliances

Before giving you a list of the most commonly used appliances in households worldwide, it is crucial to explain the electricity cost. In order to calculate it, there are several factors you need to be aware of. 

The factors in calculating electricity cost (energy consumption):

• Appliance wattage
• Estimated hours of usage per month
• The price per 1 kWh in your country

Energy Consumption Calculation – Formula

Here is the formula for calculating the energy consumption:

PC = UT \times C

PC – Power Consumption
UT – Usage Time
C – Power Consumed

Electricity Cost Calculation – Formula

Formula for estimating the electricity cost is:

EC = C \times EP

EC – Electricity Cost
C – Power Consumed
EP – Energy Price per kWh

Electricity Cost Calculator (Single Usage) – How to Use?

I will walk you through the steps and show you how our calculator works. So, let’s get started!

When using our calculator, the first step you always do is to determine your device’s power consumption (wattage). Once you know the appliance wattage, you can proceed to the next step.

When you know power consumption, the next step is to take that number and multiply it by the number of usage hours (e.g., 3 hours per day). The product of this calculation represents the total power consumed per day. It is measured in kilowatt hours (kWh).

The final step of using our calculator to estimate the total cost of electricity for one or multiple home appliances is to know the energy price regulated for your country (in your local currency). For example, Germany’s current energy price per kWh is $0.360.
Enter that number, and our calculator will give you the total electricity cost for one day (based on the power consumption you defined).

In short, it is obvious that the higher wattage your appliance has and the more hours you use them, the total electricity cost will also be higher.

Electricity Cost Calculator (Single Usage) – Example

Okay, we saw how the calculator works, in general. However, let’s apply it to a particular scenario.

Scenario: You want to calculate the overall electricity consumption for two appliances you regularly use at home: TV and freezer.

The typical wattage for a TV is 200 Watts and for a freezer 450 Watts.
For example, you use TV 4 hours a day, and the freezer is constantly consuming electrical power 24 hours.

For the TV:

For the freezer:

As a result, both appliances consume total of 11.6 kWh energy per day. Let’s take this number and enter it in the calculator, also provide the energy price for a particular country (Germany in our case). Thereofore, we can estimate the total daily cost of electricity for an individual.

Energy price for Germany: $0.360 per kWh

FAQ