Appliance Bill Calculator

 

It is very essential for the consumers to have understanding of electricity bill calculation. We have made it quite easy for you to calculate electrical charges at residential level.

Please enter the cost: Cost per unit (cents/kWh)

Appliance
Watts
Quantity
Hours/Day
kWh
Cost (USD)
/ Day
/ Month
Total kWh Consumption
kWh
Total Electricity Cost per day
$
Total Electricity Cost per month
$

Why is electricity bill calculator required?

Electricity Bill Calculator gives us a picture of energy consumption and monthly electrical expsenses which ultimately leads to better utilization of electricity.

What is Power Rating?

Power rating is the rating expressing the maximum power which can be safely and continuously handled by a device. Power rating is represented in terms of Watts (W).

Common residential loads and their power ratings:

Appliances

Power rating (W)

Fridge

100, 250, 200, 250, 550

Iron

800 to 2000

AC

900, 1200, 1500, 2000, 3500

TV

17, 20 to 60, 130, 150, 295

Washing Machine

500, 900

Printer

20 to 30, 600 to 800

Incandescent Light

60 to 100

LED Light

7 to 10

Fans

45 to 80 W

Computer

200

 

Steps for Electricity Bill Calculator:

Energy consumption by each load

First, we need to calculate the energy consumed by each load by using the formula given below

energy consumption(Wh) = power * quantity * time of use

Electricity cost

Then calculate the total energy cost by using these formulas

electricity cost(per day) =
(Σ energy consumption)*cost per unit / 1000
electricity cost(per month) = electricity cost(per day) * 30

Where,

Σ energy consumption = Sum of energy consumption for each load

1 Unit = 1 Kilowatt-hour (KWh)

Solved Example:

Let us consider the following data provided by user:

Equipment

Power (Watts)

Quantity

Time of use

(hour)

Time of use

(minutes)

Saver

18

6

18

30

Fans

60

3

12

00

Fridge

120

1

9

00


Cost per unit=$2 per unit

SOLUTION

Step 1: energy consumption by each load

Load 1 (saver):

energy consumption = 18 * 6 * ( 18 +
30 / 60
) = 1998 wh

Load 2 (fan):

energy consumption = 60 * 3 * ( 12 +
00 / 60
) = 2160 wh

Load 3 (fridge):

energy consumption = 120 * 1 * ( 9 +
00 / 60
) = 1080 wh

 

Step 2: Electricity Cost

electricity cost(per day) =
(1998 + 2160 + 1080) * 2 / 1000
= $10.476

electricity cost(per month) = $10.476 * 30 = $314.28