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.
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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 |
| V | 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 |
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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
Electricity cost
Then calculate the total energy cost by using these formulas
Where,
Ī£ 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):
Load 2 (fan):
Load 3 (fridge):
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Step 2: Electricity Cost
electricity cost(per month) = $10.476 * 30 = $314.28
