How To Calculate Your Electricity Bill. Electric Bill Calculator with Examples
Calculate Your Electricity Bill in 1 Minute with a Simple Calculation or by Using an Electric Energy Bill Calculator
Calculating electricity bills and tariffs is straightforward for electrical engineering students and professionals. However, it can be confusing for non-technical individuals who are concerned about their electric charges from electricity service providers.
Below is a simple example and calculation for an electricity bill. By following this tutorial, you will be able to easily calculate your electricity bill. Additionally, we have included a very useful electrical energy and electricity bill calculator for easy calculation of electric power consumption.
Example:
Suppose a consumer uses a 1000-watt load per hour daily for one month. Calculate the total energy bill of the consumer if the per-unit rate is 9 (in $, £, €, INR, Rs, DHR, Riyal, etc.). [Assume 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 $, £, €, ¥, INR “₹”, Rs, Peso, AED “Dirham”, SAR “Riyal” etc. or any other currency).
Note: If the unit cost of electricity is in cents, pence, or pennies, etc., simply divide the overall cost by 100 to get the amount in USD ($), Pounds (£), or any other currency, etc.
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.
Related Posts:
- Electric Energy Cost Calculator – Cost of Energy Calculation
- Energy and Power Consumption Calculator – kWh Calculator
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
A question has been raised about why we multiplied the total consumed watts by 24, even though the daily rate is already provided. It’s important to note that the given rate is not for daily rates but for the cost per unit of electricity, where 1 unit is equivalent to 1 kilowatt-hour (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 switch 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 = 1 kWh = 1 unit of energy. So, if the rate for one unit is $5, then you will have to pay $5 as the electric bill for your lighted bulb, which has consumed 1000 watts for one hour = 1 kWh = 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 encounter any difficulties with your calculation or require additional information about your custom (home, residential, or commercial) electricity bill, please let us know in the comment box below. We will assist you accordingly.
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7201000/1000= 7201. not 720. Please correct it.
Thanks Dear..it was calculator error..
I want calculate electrical industrial unit of consumed if I connected 200/5. CT to ac 3phase 4 wire electronic kwh meterCT-2M
Hellooo Vinod Sir how u Get that 7201000… 1000x24x30=720000 na… than how u get that 7201000 .. again nxt comment u said that 1000x24x30=720000 … i'm fully confused about u r comment please explain me…. Vindos sir and Electrical Technology
Sir,we’re doing a project work of an electric vehicle. using 60v, 220Amph battery I need to find out how many units it is consuming and distance it was traveling is 100 kms per charge
Dear sir,
Im shyam from Telangana state, i would like to request you to share us how to calculate power bill from three phase energy meter and also for what parameters we need to consider for calculation
Dear Karthik@<br />Vinod have corrected the above calculation…as 1000x24x30=720000…but mistakenly, we had written 7201000 instead of 720000. That's why you are confused.
If I use 2000 watts otg for 1hr with the unit rate of rs.9 then what is the cost for that 1 hr??
2000/1000=2*9=18
2000w in conver to kw= 2000/1000=2kw
So conver in hr. =2kwh
Now u can say unit rate is 9 so
Your ANS is 18 rupees
Jess
DEAR SIR I AM USING GRILL SANDWICH MAKER 1500 WATT 1 HOUR PER DAY SO WHAT IS MY MONTHLY CONSUMPTION?
45 unit may be
Hi RD Soni Ji,
1500watt in convert to kw= 1500/1000=1.5kw
So convert in hr. =1.5kwh
Now u can say unit rate is 9/- so
Your ANS is 13.5 rupees
Regards
Prashanth
10288kwh are in how many units
hi what will be the formula for 3 phase
looking for the price for 60kwh per day
1000x24x30= 720000. Not 7201000
Thanks Dear..it was calculator error..
BTU = British Thermal Unit ☺️
for how long??? i.e, how many hours u using these appliances in a day…
hellow sir,<br />i am subbu….i am using commercial. i am using 1 laptop and 1 fan and 1 florescent lamp … 1 unit per cost 7 rupess..<br />how is to calculte per month<br /><br />ssraj217@gmail.com
1000*24*30/1000=720units
Sir
Hume kisi chej ka 1hour ki unit nikalni ho to kaise nikalte h
plz tell me
how to calculate 3 phase electricity bill
thanks
mustafa manzoor
1000 watts daily for one month (24 hrs) .. 1000w 24hours 30 days (1000wx24hx30d) =units 720
I think according to the question it should be:
1000w x 1hr ÷1000 = 1Kwh or a unit per day
Or 30 Kwh or 30 units per month.
# If load factor of 0.6 were given on above question, how would u approach to solution??
1000*24*30/1000=720units
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good explanation but my doubt if my total consumption is 250 units then i am paying 250*4=1000 Rs. does it mean cost of 250kW is 1000Rs if my question is wrong then what is the total amount of the palnt spendng on me to supply 250 units in a month?
Yes! If your consumed Units are 250 [250kWh] and your bill is Rs. 1000, then your are paying Rs. 4 per Unit Electricity.
Plz what is one unit charge in Jaipur
It depends on your service provider (different charges are applied in different countries and locations).
In addition, the per unit charges are also mentioned in your electricity bill (In most cases).
Thanks for sharing this calculation on the <a href="http://www.torchenergy.com/s/average-electric-bill-for-apartment" rel="nofollow">Average Electric Bill</a>. I was finding it difficult to understand how the bill is calculated, based on the consumption of electricity.
Thanks for sharing this calculation on the <a href="http://www.torchenergy.com/s/average-electric-bill-for-apartment" rel="nofollow">Average Electric Bill</a>. I was finding it difficult to understand how the bill is calculated, based on the consumption of electricity.
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simpel formula is E=PT
Only for this post…..but not apply on three phase and other load calculations
DEAR WHAT WILL BE THE FORMULA FOR THREE PHASE PLEASE.
As per your statement "A consumer consumes 1000 watts daily for one month" so that equals to 1000W *30 =30000 W hence 30kwh, <br />If your statement was "A consumer uses 1000W bulb (power consumption for electrical appliances is mostly stated in watt h) for 24hrs/ day for a month of 30days. then ur calculation 1000 x 24 x 30 = 720000 watts/hour is right.<br />
Agree…
Hello Rohit sir.. here in that Question we can lighted that bulb in only 1 hour na… then how u calculated that total hours(24 hrs) .. 1000x24x30.. in that Multiplication it not comes to 24hrs i think. bcoz we can lighted only 1 hour na…. please solve my Confusion … my problem is linked with other questions also… :( :(
Read the Q one more
1 MW = 1000 kilowatts…
Therefore, a 1 MW power plant will produce 1000 Kilowatts per hour,.and we know 1 kWh is equal to 1 Unit.. so if there is 1000 watts appliance used electricity for 10 hours then it means 10 units of electricity used.. if 1 unit is of 5 rupees then we can find out the monthly cost as..
1000 Watts*10 Hrs*30 Days= 300000 watts/hour.
Where is 1 unit = 1 kWh.
300000/1000 =300 Units
Cost of per unit is 5.
So total Cost or Electricity bill=5*300=1500
1hp ka electricmotor 1hr chalega to kitna unit aaiga
Dear Karthik @<br />Check the Question as"A consumer consumes 1000 watts load per hour daily for one month.Calculate The Total Energy bill"<br />So 1000W/h daily = 1000W/h x 24….(As daily mean = 24 hrs in a day.)<br />That's why we have multiplied it with 24.
i'm fully confused… Why u multiply with 24 hrs (1000x24x30) … in that Question 1000 watts load per hour daily for one month.. it means we can loaded that bulb in 1 hour Only in total 30 days na… that bulb not loaded 24 hours only in one hour… then why u multiply that 24hrs.
1000Watt per hour Daily = 1000W/h x 24<br />Check the Question as"A consumer consumes 1000 watts load per hour daily for one month.Calculate The Total Energy bill"<br />So 1000W/h daily = 1000W/h x 24….(As daily mean = 24 hrs in a day.)<br />That's why we have multiplied it with 24.
Ohhh okay Thank u ET…. in that question load per hour daily for one month,,, but i want i'm consumes 1 hour only in whole day for One month then how much units we can consumed…
If you mean 1000Watt only for One hour daily (take 1 month = 30 days)<br />the,<br />1000W x 1Hr x 30 Days = 30000WH = 30kWH = 30Units
Oh Nice Thank u ET.. now totally gone Confuse.. thank u very Much.. if Diff Diff watt bulbs and Heaters are using in 3, 4 hours how to calculate… Hey in this site is thier any Electrical Calculator as per India, AP Units and Tariff.
In case of Different load…. Add all those loads and usage per hour…then multiply with 30 , if you want to find the electric bill for 0ne month.
Karthik Brother Simple Formula,
1500 Watt 3 Hour Daily,
1500X3=4500X30=135000/1000=135
You Use 135 Unit Per Month.
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if i have 100 watt bulb and it is usage 3 hr per day in a month how does it calculate
100 x 3hrs x 24 hrs
and then divided by 1000
No I think 100×3hrs×30days then devided by 1000
You are Right Brother
100watts*3hrs*30days=9000
It convent into kwh=9000/1000
=9kwh
As per units =9units
Sir, Energy using in Telecom Towers with 3Phase s/m LT service. Each phase drawing 16A, 12A, 12A respectively. Load is static. How to calculate the avg.units per day/month/bimonthly. CT ratings 20A each phase. Trivector energy meter installed.
3Phase LT Connection with Trivector energy meter CT ratings 20A. Each Phase drawing 16A,12A & 12A respectively. Static load
Hello !<br /><br />I'm Shubham<br /><br />tell me, how to calculate one bill between 3meters on the basis of Unit
Hello !<br /><br />How to calculate one bill between 3 meters on the basis of unit
please solve this equation <br /><br />i have a 100w bulb operate 5 hours a day and 80w ceiling fan operate 10 hours a day. how to calculate a electric bill
Please help me to calculate :<br />02 fans used avg. 16 hrs daily, means that total 32 hrs, 02 lights used daily 20hrs and 01 fridge ( 12cft ) 24hrs. <br />What will be the total units for a month?
i have question – a household uses the following electrical appliances -<br />1.a fridge of rating 400W for 10hrs each day.<br />2. two fans of rating 80W each for 12hrs per day.<br />3. six electric bulbs of rating 18W each for 6hrs each day<br />so, calculate electricity bill of house hold for month of june , if cost per unit of electrical energy is Rs5.
I was confused about my electric consumption. This site helped me,thanks.
4.308 units<br />
4.088 units perday
how do the sebs calculate for load in 3 phase – do they average out on each phase in meter.. for eg. R phase 3 amps , Y phase 5 amps and B phase 6 amps single phase load, then do they average on each phase of a 3 phase meter ?? and then calculate average power for 3 phase?? please clarify
this site is very useful to me.thank you for your ans
my bill is 1185/- units are 245 is it correct bill, how to caluclate please reply.
how to caluclate the electricity bills? my bill amount is 1185/- unts are 245 is correct rate.
sir i m using 0.5hp single phase motor every day minimum 3hrs running and 6.39paisa/unit cost .what is the monthly consumtion of this pump .please send me calculation details
0.5*746=373w
373/1000=0.373kw
total units=0.373*3*30=33.57units
33.57*6.39=214.5123
ur mntly conusmption=214.5123
why you multiply 746 with 0.5. as we know motor is 0.5hp. kindly confirm
@Anna… As you know that, there are 746Watts in 1hp….
Therefore, To convert the 0.5hp into watts,,, That’s why they multiplied with 746Watts….
I used to be able to find good info from your blog articles.
if we on 70 hp mtor how much units its take
hello sir, i have one ice cream machine, it consume 1.1 kw per hour, so what is a calculation of per day,and how much unit i used in 1 hour and what is a amount of it,
please give me a suitable reply,
Sir i’ve got a laptop that I use 1hr daily for charging what’s the total unit sir
It is very useful for everyone it helped me a lot
Thank you.
unit calculation
How to calculate electricity cost for private educational institutions in Tamilnadu. As i refered in tangedco website, the following tariff details were given,
for private educational institutions, Demand charge in Rs/KVA/Month – 350 , Energy charge in Paise per kwh – 635.
While i checked with online calculator of tamilnadu electricity board,
it is asking for contracted load, consumed units and kvah. contracted load is the load specified in the agreement between consumer and licensee. Why are they using kvah for calculating energy cost? By using kVAh and Kwh and contracted load, how they will calculate energy cost?
Can u give me an example for calculating?
If you could give me your ideas for this, it will be helpful for me.
Dear, There are lots of way to charge the consumer for used electrical power. i.e. Two part tariff, Max demand Tariff , Three Part tariff, Power factor tariff and block rate tariff etc. But they charge for the exact kWh… So please tell me the total number of consumed unites and the price per unit. Thanks
Dear sir, This is were I am confused. I downloaded the tariff details of Tamil Nadu from internet. For domestic consumers, it is given like, for first 100 units a particular rate and for next 100 units a particular rate and so on. But for other tariffs like private educational institutions, it is given as,
Demand charge in Rs/KVA/Month – 350 , Energy charge in Paise per kwh – 635. (Rs.6.35 Per unit)
And when i checked the online calculator of tangedco website, for the calculation of domestic consumers, it asks only the number of consumed units. If we enter the consumed units, it wil automatically calculate and give the output of the electricity bill.
But for Private educational institutions, it asks for consumed units, Kvah and contracted load. So as per you asked, lets take the example of 10,000 units consumed and Per unit cost as mentioned above as Rs. 6.35.
Please let me know why they given the information of demand charge , and contracted load. How to use that for calculating energy cost?
please calculate total bill in INR of 100unit, 200unit &500unit
Dear sir,i used 100 kWh for 1 month and per unit i pay RS 4.so how much will the bill comes at the end of month?
Simply, 100 x 4 = 400Rs … (Without Taxes and other charges)
How to calculate the per unit cost.for example if 85,747 Kwh
if one thousand watt motor is ON for one hour, it will cnsume one unit.
And
If 2kw motor is ON for one hour, it will cosume two units .
2kw for 2 hr will cosum 4 unit.
Units = power * time
sir, i want to calculate units for street lights.. inwhich so many lamps are used.. like mercury , metal halide , cfl lamps and led also.. so how can i calculate units for such variable wattage
i want to calculate my electricity consumption for my washer ,
washer is three phase induction motor
voltage across phases is 410 volts
Respected Sir,
This site is very useful for me . Sir i want to know that how many watts usually a fan , heater,refrigerator, T.V and a computer consumes????????????
Reply me as soon as possible.
what is d charges for 50 units
Sir if i switch ‘ON’ 40watt energy saver for 1hr, so than what will be the total cost for 1hr. it would be 40watt according to formula or some thing else.
why we multiply 24hrs into kwh????
According to the rate of electricity charge , minimum charge upto 20units is Rs 80 and the cost per units from 21 unit to 250 units is Rs 7.30.How much do 200 units cost?
I have a cooler with 105 w mortor. How many unit in 24 hours ?
Make it more easier for me please??????
6480 what …………….. Kilo or watts????????
Ct ratio 175/5 , one day unit 20, so please tell me par phase unit
Power= 1500watt=1.5kw
Time= 1 hr/day
1kw*1hr=1unit of electricity
1.5kw*1hr*30dayes=45units.
If per unit charges are 13rupees, total cost will be 45*13=
how to calcalte 3 phase bill
how i divide total 3 phase bill in two port according to using of energy
thanksss
I need to calculate for 6 kWh and 180 kWh
Hi,
But how to know that the Electricity meter is working normal or abnormal as we are getting all made china meter.
is their any logic instrument to instigate or investigate
In the original example, why did we multiply by 24 although the consumer used one hour in a day? I think if the consumer is using one hour only in a day, we do not need to multiply by 24 to calculate monthly usage watts.
I got 1.72kw so how much rupees charged
A family living in central delhi has consume 250units of electricity in the month of may, find out its senctioned loads and calculate the electricity bill for same?
Please answer this question asap..
kindly explain me the calculation of kw and kva in case of lag only tariff or lead as UPF tariff.
Sir mujhe ye jankari chahiye ki 1unit bijali bill me kitana watt. lagta hai
1 unit = 1000W
How could I calculate annual usage by using average monthly payment
I am staying in rent but very months our owner is charging more for electric bill how its possible she’s not showing the bill also so plz tel me r mail me pre unit what is the charge and for 2 months we have used 172 units and I’ll send the meter sl no.38397456 plz check an update me as soon as possible……
11KV and 33KV . how to calculate? How much?
Yes, I’d like to know?
How to Calculate an average power of an induction furnace if we kW,Fce Volts,Freq,Kwh(M1+M2) readings?
my bill is 920/- units are 139 is it correct bill, how to caluclate please reply.
34 unit ka kitna total electric bill kitna hoga
A.o.A
if the load show on three phase LT panel is 2300 Amp then how we find the units and kw?
i use 2 fan 20 hours and 3 tubeligts 14 hours , please calculate my electric units for bil
In 3phase how to calculate total unit per month please formula or how to convert kwh to unit with formula
Even if you know how to calculate your electric bill with just a pen and paper, you can learn a whole lot more about your energy consumption with a technological upgrade. Companies like Neurio, Curb and Sense have designed products that can connect to your home s main electrical panel and recognize the unique electrical signatures of the appliances in your home. Each product works somewhat differently, but most allow you to view detailed breakdowns and analysis of energy usage using an app or web browser. This kind of information comes at a price, however — you should expect to pay a few hundred dollars for a system like this, and some require an electrician to install it at an additional cost.
Rs 18 until
If we have consumed units of 100 in 3 phase meter and load is single phase , equally distributed on each phase then how many units consumed if we applied the same load on single phase meter
THE Electric bill INTELLIGENCE PLAN THEIR SALARY THROUGH OUR PUBLIC. THATS ALL
COOL
OUR FATE .NOBODY CANT.NOBODY SAY ANYTHING. NOBODY CAN ASK. ALL THE EB STAFFS AND GOVERNMENT SUPPORT EB.
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MATH IS COMMON FOR EVERYBODY IN THIS WORLD.BUT ELECTRICITY BILL MATH IS DIFFERENT .
THERE IS A PUNISHMENT FOR HEAVY USERS.IF IN INDUSTRIES .O.K..BECAUSE THEY CAN SHOW THEIR EXPENSES IN IT.BUT ORDINARY PUBLIC.NOTHING DO IT.
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Hello, mine is phase-2 wire static energy meter which shows 001860 digits, therefore how much amount it will be to total?
I have a question, suppose you light up a 120 watt bulb just for some hours that you are not certain about. But certainly not for a whole day. So in that case when calculating for total energy consumed, Do you still multiply the energy unit by 24 hours?
If yes or no pls explain.
Thanks in advance
If you want to calculate the electricity bill based on one month, You will have to multiply it as mentioned in the example.
If you want to calculate the electric energy consumption, You may simply use the energy consumption calculator based on basic formula “E = P x t in Wh”
a total annual consumptions 720kwh, a maximum load 320kw, 0.85 p.f , if cost is 20birr per kVAR, plus 0.3birr per kwh .calculate the total cost
help me