Electricity Consumption & Cost Calculator
Calculate how much electricity your appliances use in kWh (units), estimate your monthly electricity cost, and understand which appliances consume the most power.
Electricity Cost Settings
Your Appliances
Select an appliance, enter the quantity and estimated hours of use per day. You can change the power rating when the actual appliance uses a different wattage.
Your Estimated Electricity Use
Cost Breakdown
Appliance Consumption Breakdown
Electricity Consumption & Cost Calculator
The Electricity Consumption & Cost Calculator helps you estimate how much electricity your home appliances use and how much that electricity may cost each month.
Enter the appliances you use, their power consumption, quantity and average operating hours per day. The calculator estimates your daily and monthly electricity consumption in kWh, commonly called electricity units.
What Is One Unit of Electricity?
One unit of electricity is equal to one kilowatt-hour (kWh).
For example, a 1000W appliance running for one hour uses approximately:
How to Calculate Electricity Consumption
The basic electricity consumption formula is:
To convert watt-hours into units:
Example: How Many Units Does a Fan Use?
Suppose a 70W ceiling fan operates for 10 hours per day.
Over 30 days:
That is approximately 21 electricity units per month.
How Much Electricity Does a Home Use?
Household electricity consumption depends on the appliances installed, their power ratings, how many hours they run and how frequently they are used.
Fans, air conditioners, refrigerators, water pumps, electric irons, washing machines and other high-power appliances can have a significant effect on monthly electricity consumption.
Which Home Appliances Use the Most Electricity?
High-wattage appliances usually consume more electricity when operated for the same amount of time.
For example, an electric iron rated at 1500W can use much more power during operation than an 18W LED bulb. However, total monthly consumption also depends on how long each appliance is used.
How to Reduce Electricity Consumption
The easiest way to reduce electricity use is to identify appliances that consume large amounts of energy or operate for long periods.
Reducing unnecessary operating hours, improving appliance efficiency and avoiding unnecessary standby loads can reduce total energy consumption.
Electricity Cost in Pakistan
Residential electricity pricing in Pakistan is based on tariff categories and consumption levels. The applicable rate can vary depending on consumer category and the number of units consumed.
For this reason, the calculator includes a Pakistan residential tariff estimate as well as a custom rate option.
The Pakistan tariff option uses a base residential schedule. Actual bills can include additional charges and monthly or quarterly adjustments, so the result should be treated as an estimate rather than an exact bill total.
Electricity Units Calculator for Home Appliances
You can use this calculator to estimate electricity usage for common household appliances including fans, LED bulbs, refrigerators, televisions, water pumps, irons, laptops, computers, washing machines, air coolers and air conditioners.
Why Your Actual Electricity Consumption May Be Different
The wattage shown on an appliance is not always equal to the power it continuously consumes.
Refrigerators cycle on and off. Inverter air conditioners can vary their power consumption. Fans may use different amounts of electricity at different speed settings. Washing machines, pumps and other appliances may operate only for part of their selected cycle.
For the most accurate estimate, use the power rating shown on your actual appliance or measure its consumption with a suitable energy meter.
From Electricity Consumption to Solar System Size
Knowing your monthly electricity consumption is an important first step when planning a solar system.
Once your daily or monthly energy requirement is known, you can estimate the solar panel capacity and battery storage required to offset or back up that electricity usage.
Frequently Asked Questions
How do I calculate my electricity bill from units?
Multiply the applicable electricity tariff by the number of units, then account for other applicable charges, taxes and adjustments. Actual billing rules depend on your tariff category and billing month.
How many units does a 1000W appliance use?
A 1000W appliance running for one hour uses approximately 1 unit of electricity. Running it for 5 hours would use approximately 5 units, before considering variations in actual power consumption.
How many units does a 100W appliance use per day?
If it operates continuously for 10 hours, it uses approximately 1kWh, or one electricity unit:
Does a refrigerator use 150W continuously?
Not necessarily. A refrigerator compressor normally cycles on and off, so its average daily consumption can be different from its rated running power. The value used in the calculator is a typical planning estimate.
Can this calculator calculate my exact Pakistan electricity bill?
No. It estimates energy cost. Your actual bill may include fixed charges, taxes, surcharges, fuel price adjustments, quarterly adjustments and other applicable charges.
Can I use this calculator before installing solar?
Yes. Estimating your daily and monthly electricity consumption is a useful starting point for solar and battery sizing.
Electricity Consumption & Cost Calculator
Calculate how much electricity your appliances use in kWh (units), estimate your monthly electricity cost, and understand which appliances consume the most power.
Electricity Cost Settings
Your Appliances
Select an appliance, enter the quantity and estimated hours of use per day. You can change the power rating when the actual appliance uses a different wattage.
Your Estimated Electricity Use
Cost Breakdown
Appliance Consumption Breakdown
Electricity Consumption & Cost Calculator
The Electricity Consumption & Cost Calculator helps you estimate how much electricity your home appliances use and how much that electricity may cost each month.
Enter the appliances you use, their power consumption, quantity and average operating hours per day. The calculator estimates your daily and monthly electricity consumption in kWh, commonly called electricity units.
What Is One Unit of Electricity?
One unit of electricity is equal to one kilowatt-hour (kWh).
For example, a 1000W appliance running for one hour uses approximately:
How to Calculate Electricity Consumption
The basic electricity consumption formula is:
To convert watt-hours into units:
Example: How Many Units Does a Fan Use?
Suppose a 70W ceiling fan operates for 10 hours per day.
Over 30 days:
That is approximately 21 electricity units per month.
How Much Electricity Does a Home Use?
Household electricity consumption depends on the appliances installed, their power ratings, how many hours they run and how frequently they are used.
Fans, air conditioners, refrigerators, water pumps, electric irons, washing machines and other high-power appliances can have a significant effect on monthly electricity consumption.
Which Home Appliances Use the Most Electricity?
High-wattage appliances usually consume more electricity when operated for the same amount of time.
For example, an electric iron rated at 1500W can use much more power during operation than an 18W LED bulb. However, total monthly consumption also depends on how long each appliance is used.
How to Reduce Electricity Consumption
The easiest way to reduce electricity use is to identify appliances that consume large amounts of energy or operate for long periods.
Reducing unnecessary operating hours, improving appliance efficiency and avoiding unnecessary standby loads can reduce total energy consumption.
Electricity Cost in Pakistan
Residential electricity pricing in Pakistan is based on tariff categories and consumption levels. The applicable rate can vary depending on consumer category and the number of units consumed.
For this reason, the calculator includes a Pakistan residential tariff estimate as well as a custom rate option.
The Pakistan tariff option uses a base residential schedule. Actual bills can include additional charges and monthly or quarterly adjustments, so the result should be treated as an estimate rather than an exact bill total.
Electricity Units Calculator for Home Appliances
You can use this calculator to estimate electricity usage for common household appliances including fans, LED bulbs, refrigerators, televisions, water pumps, irons, laptops, computers, washing machines, air coolers and air conditioners.
Why Your Actual Electricity Consumption May Be Different
The wattage shown on an appliance is not always equal to the power it continuously consumes.
Refrigerators cycle on and off. Inverter air conditioners can vary their power consumption. Fans may use different amounts of electricity at different speed settings. Washing machines, pumps and other appliances may operate only for part of their selected cycle.
For the most accurate estimate, use the power rating shown on your actual appliance or measure its consumption with a suitable energy meter.
From Electricity Consumption to Solar System Size
Knowing your monthly electricity consumption is an important first step when planning a solar system.
Once your daily or monthly energy requirement is known, you can estimate the solar panel capacity and battery storage required to offset or back up that electricity usage.
Frequently Asked Questions
How do I calculate my electricity bill from units?
Multiply the applicable electricity tariff by the number of units, then account for other applicable charges, taxes and adjustments. Actual billing rules depend on your tariff category and billing month.
How many units does a 1000W appliance use?
A 1000W appliance running for one hour uses approximately 1 unit of electricity. Running it for 5 hours would use approximately 5 units, before considering variations in actual power consumption.
How many units does a 100W appliance use per day?
If it operates continuously for 10 hours, it uses approximately 1kWh, or one electricity unit:
Does a refrigerator use 150W continuously?
Not necessarily. A refrigerator compressor normally cycles on and off, so its average daily consumption can be different from its rated running power. The value used in the calculator is a typical planning estimate.
Can this calculator calculate my exact Pakistan electricity bill?
No. It estimates energy cost. Your actual bill may include fixed charges, taxes, surcharges, fuel price adjustments, quarterly adjustments and other applicable charges.
Can I use this calculator before installing solar?
Yes. Estimating your daily and monthly electricity consumption is a useful starting point for solar and battery sizing.