Calculate Your Electricity Bill in 1 min by Simple Calculation. Electric Energy Bill Calculator
It is very easy to calculate the electricity bill and tariff for electrical engineering students and professionals but, it makes confusion for non-technical people that concern about their electric charges from the electricity service providers.
Below is a simple example and calculation about electricity bill. By following this simple tutorial, you will be able to easily calculate your electricity bill. In addition, we have added a very useful electrical energy, and electricity bill calculator for easy calculation of electric power consumption.
Example:
Suppose, a consumer consumes 1000 watts load per hour daily for one month. Calculate The Total Energy bill of the consumer if per unit rate is 9 (In $, £, €, INR ,Rs, DHR, Riyal etc) [Take 1 month = 30 Days].
Solution:
1 Unit = 1kWh.
So the Total kWh = 1000 Watts x 24 Hrs x 30 Days = 720000 … Watts / hour.
We want to convert it into electric units, Where 1 Unit = 1kWh.
So the total consumed units by user: = 720000 / 1000 … (k = kilo =1000).
Total Consumed Units = 720.
The cost of per unit electricity is 9.
Therefore, the total Cost of Electricity Bill = 720 units x 9 = 6480. (In $, £, €, ¥, INR “₹” PKR, Rs, Peso, AED “Dirham”, SAR “Riyal” etc. or any other currency).
That’s it. You have Done :)
Electricity Bill Calculator
Electric Utility Bill Calculation
Calculation of Electric Energy Consumption
The following formula is used for electrical energy consumption.
E = P x t … (Wh)
E = P x t ÷ 1000 … (kWh)
Consumed Energy = Energy Used in Watts x Time in Hours
Where:
- E = Electrical Energy (Consumed in kWh)
- P = Power in Watts
- t = Time in hours per day
Wh (Watt-hour) is a small unit, so we divide the consumed energy on 1000 to get the value of energy in kWh instead of Wh.
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Example:
Consumed Energy = 2kW x 5 Hours = 10kWh
Calculation of Cost of Electricity and Bill Estimation
The following formula can be used as electric bill estimator per hour in dollars or other local currency.
Cost of electricity per hour = Consumed Energy in kWh x Cost of 1 Unit electricity
Cost Per Hour = kWh x Unit Price
E = P x t … (Wh)
E = P x t ÷ 1000 … (kWh)
Energy Cost = Energy Used in kWh x Time in Hours
Example:
Cost Per Hour = 5kWh x .50 Cents per unit = $2.5
Good To Know:
A question is raised about why we multiplied the total consumed watts with 24 although the daily rate is already given. Note that It is not the value of daily rates, but It’s the rate of Per Unit electricity, Where 1 Unit = 1 kWh (Also known as 1 = B.T.U = Board of Trade Unit).
Good to know: 1 Board of Trade Unit = 1 B.O.T Unit = 1kWh = 1000Wh = 36 x105 … Joule or Watt-seconds = 3.6 MJ
For instance, If you switched ON a 1000 watt bulb for 1 hour, It means you have consumed 1000 watts for an hour i.e. (1000 watts for 1 hour = 1kWh = 1 unit of energy). So if the rate of one unit is $5 , then you will have to pay 5 Dollars as electric bill for your lighted bulb which have consumed 1000 watts for one hour = 1kWh = 1 unit of electricity.
Power Consumption of Typical Home Appliances in Watts
The following table shows the estimated value of wattage rating (in Watts) for different and common household devices, appliances and equipment.
| Electrical Appliance | Power Wattage in Watts “W” |
| Fan | 80 |
| LED Light Bulb | 25 |
| AC – Air Conditioner | 900 |
| Refrigerator | 250 |
| Electric Heater | 2000 |
| Water Heater | 4000 |
| Hair Dryer | 1500 |
| Clothes Dryer | 3000 |
| Clothes Iron | 1400 |
| Dishwasher | 1300 |
| Electric Kettle | 1700 |
| Toaster Oven | 1100 |
| Microwave Oven | 1000 |
| Desktop Computer | 150 |
| Laptop Computer | 100 |
| TV – Television | 120 |
| Stereo Receiver | 300 |
| Vacuum Cleaner | 1200 |
| Washing Machine | 1500 |
| Coffee Machine | 1000 |
| Blender | 500 |
| Water Pump | 800 |
| Sewing Machine | 100 |
| Thankless Water Heater | 15000 |
Isn’t it easy to calculate your electricity bill?… if you face any problem regarding your electricity bill calculation or want to know more about your costume (home, residential or commercial electricity bill, let us know in the comment box below. We will help as soon as possible
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FAQs
Multiply kilowatts by the average amount of hours the appliance is in use. Multiply that number by 30 days to calculate the average kWh your appliance uses each month. Multiply that number by your kWh rate to estimate your electric bill for the month.
How to calculate the electric bill? ›
Multiply kilowatts by the average amount of hours the appliance is in use. Multiply that number by 30 days to calculate the average kWh your appliance uses each month. Multiply that number by your kWh rate to estimate your electric bill for the month.
How much electricity does 800 W use? ›
800 watts is 0.8kW. Multiply the two together and you get 0.2kWh. So the total amount of energy consumed by running an 800W microwave for 15 minutes is 0.2kWh. For those interested, that is about three and a half pence worth of energy.
What is 1000 watts 1 hour unit? ›
1000 watts equals one kilowatt. When you run a 1000 watt appliance for an hour you use one unit (kilowatt hour) of electricity.
How many kWh per day is normal? ›
According to the United States Energy Information Administration, the average American household consumed 10,632-kilowatt hours (kWh) of electricity last year. The average kWh per month was 886, while the average kWh per day was 29.
What uses the most electricity in a home? ›
Top five energy consuming home appliances
- Wet appliances. Washing machines, dishwashers and tumble dryers account for 14% of a typical energy bill, taking the top spot in our list. ...
- Cold appliances. ...
- Consumer electronics. ...
- Lighting. ...
- Cooking.
Electricity is measured in Watts and kilowatts
Electricity is measured in units of power called Watts, named to honor James Watt, the inventor of the steam engine. A Watt is the unit of electrical power equal to one ampere under the pressure of one volt.
Does 1500 watts use a lot of electricity? ›
A 1500 watt heater uses exactly this, 1500 watts per hour, relative to 24 hours, heating a modest-sized room. Many household products use just as much if not more than 1500 watts, so, relatively speaking, heaters are fairly reasonable in terms of energy required.
How much 1500 watts cost per hour? ›
| Wattage | Average Cost Per Hour | Average Cost Per Day |
|---|
| 400 | $0.06 | $0.48 |
| 750 | $0.12 | $0.96 |
| 1500 | $0.24 | $1.92 |
| 3000 | $0.48 | $3.84 |
Dec 9, 2022
What is the average energy consumption and cost of different types of LEDs?
| Brightness (in Lumens) | Watts | Avg. Cost / month* |
|---|
| 400 – 500 | 8 – 12W | $0.31 |
| 650 – 850 | 13 – 18W | $0.48 |
| 1000 – 1400 | 18 – 22W | $0.6 |
| 1450 - 1700+ | 23 – 30W | $0.82 |
1 more rowTherefore, 3000 Wh is equal to 3 kWh. The amount of energy consumed depends on the power rating of the device being used and the amount of time it is used for. For example, a 100-watt lightbulb left on for 30 hours would consume 3000 watt-hours of energy.
How many units is 2000 watts? ›
A 2000W device would use 2000W in 1 hour, or 2 units (2000W * 1 hour). If you utilized it for 10 hours straight, the total energy output would be 2000*10 = 20000Wh = 20kWh, or 20 units.
How do you calculate electricity units per hour? ›
To calculate consumption, you multiply the power in kW by the hours you use the devices per day, per week or per month. For example, let's examine the consumption at the home of Agnes and Roman: The TV has a power of 200 W, that is, 0.2 kW. They have it on for 2 hours a day, so their daily consumption is 0.4kWh.
How much electricity does a 2000 sq ft house use? ›
Think about it: it takes much more energy to heat a large home than a studio apartment. Based on the average home size in the U.S., about 2,000 square feet, and an average household electricity usage of 900 kWh, we can assume 0.45 kWh are used per square foot each month.
How much electricity does a 2 person household use? ›
The average one- and two-bedroom apartment uses 20-30kWh of electricity per day. That translates to around 900kWh per month. kWh stands for kilowatt-hour, which is the standard unit of measure for electricity usage and costs.
How many kWh does a 1500 sq ft house use? ›
Estimate Your Home's Monthly kWh Usage
| Home Size (Sqft) | Estimated Monthly kWh Usage |
|---|
| 1,000 | 500 – 1,000 kWh |
| 1,500 | 750 – 1,500 kWh |
| 2,000 | 1,000 – 2,000 kWh |
| 2,500 | 1,250 – 2,500 kWh |
5 more rowsHome office equipment such as power strips, desktop computers, monitors, printers, lamps, and anything with a digital display can use electricity even when they're turned off.
What uses electricity overnight? ›
If you leave your computer or laptop plugged in to charge overnight, you could be wasting a significant chunk of electricity. Even when it's off, that power cord will continue to draw energy. Phones. Similarly, leaving your phone plugged in to charge overnight is a bad idea.
Does a TV use a lot of electricity? ›
Yes. TVs can use a lot of electricity and quickly add up to your electricity cost. Old technology TVs like CRT and Plasma eat up more watts; however, the latest LCD and LED TVs are way more efficient and have less power hungry which is a relief. A modern TV uses around 50 to 100 Watts, depending on the screen size.
How do you calculate current? ›
Ohm's Law denotes the relation between voltage, current, and resistance. You ought to be familiar with the equation V = IR. From the equation, you can easily get the value of the current by dividing the voltage with the resistance or: I = V/R.
Here's the Formula for Calculating Watts Into Kilowatt-Hours: kWh = (watts × hrs) ÷ 1,000.
How can I monitor my home electricity usage? ›
To get specifics regarding your energy usage, you need an electricity usage monitor that tells you exactly how many kWh a device or appliance is drawing. It can be as simple as a "plug load" monitor that plugs into an outlet. You then plug the device/appliance into the monitor.
How do you calculate watts per hour? ›
Here's the equation: (total number of watts) x (total number of hours) = watt-hours. So, if you have a 60W bulb and you're trying to calculate how many watts your bulb uses in 24 hours, your equation would read 60 watts x 24 hours = 1440 watt-hours.
