Free Electricity Bill Calculator Spreadsheet
< 1 minute readLooking to calculate your electricity bills on a spreadsheet? Download BKV Energy’s free electricity bill calculator spreadsheet. Use the links
Household Electricity Consumption Calculator
2 minute read • Last update June 2026
If you’re looking to estimate your home’s energy consumption, you can customize this calculator by adjusting the wattage of appliances to match the real ones in your home, the amount of time that you use each appliance per day, and the total number of appliances in your home.
This household electricity consumption calculator utilizes the wattage of each appliance, the time used, and the appliance quantity to estimate monthly kilowatt-hour usage.
When you know how much power your home uses and what appliances are responsible for the most usage, you can more easily and effectively conserve power at home.
When you conserve energy and reduce your power usage, you can reduce your electricity bill.
How to calculate how much electricity your home uses per month
The easiest way to find your home’s monthly electricity usage is to check your electricity bill or create an account on Smart Meter Texas.
If you’re looking to calculate estimated monthly usage from scratch, follow these steps:
- Estimate the wattage of each your appliances
- Multiply the wattage by hours used per day
- Divide by 1,000 to convert watts to kilowatt-hours (kWh)
- Multiply by 30 to round out the monthly estimate
Typical wattage of common household appliances
The table below shows typical wattage of common household appliances: central air conditioners, refrigerators, electric heating systems, electric water heaters, LED light bulbs, ceiling fans, televisions, laundry machines, dishwashers, electric stoves, microwaves, air fryers, coffee makers, garbage disposals, desktop computers, laptop computers, gaming consoles, wi-fi routers, phone chargers, hair dryers, vacuum cleaners, and electric vehicle chargers.
| Appliance | Wattage |
|---|---|
| Central air conditioner | 3,000 watts |
| Refrigerator | 500 watts |
| Electric furnace | 15,000 watts |
| Electric water heater | 3,000 watts |
| LED light bulb | 10 watts |
| Ceiling fan | 60 watts |
| Television | 150 watts |
| Clothes washing machine | 1,000 watts |
| Clothes dryer | 3,000 watts |
| Dishwasher | 1,200 watts |
| Electric stove | 2,500 watts |
| Microwave | 1,000 watts |
| Air fryer | 1,400 watts |
| Coffee maker | 800 watts |
| Toaster | 1,200 watts |
| Garbage disposal | 1,000 watts |
| Desktop computer | 400 watts |
| Laptop computer | 100 watts |
| Gaming console | 150 watts |
| Wi-fi router | 10 watts |
| Phone charger | 20 watts |
| Hair dryer | 1,500 watts |
| Vacuum cleaner | 1,000 watts |
| EV charger | 7,200 watts |
How much electricity does the average Texas home use?
The average Texas home uses around 1,100 kilowatt-hours (kWh) per month.
Texas residential electricity consumption is higher than the national average due to the state’s warm weather. The summers are long and hot, which means Texans are relying on their air conditioning to keep cool for much of the year.
However, household energy consumption varies significantly based on the size and location of the home. Larger homes use more energy than smaller homes, and homes in warmer areas typically use more power than those that experience milder weather.
Air conditioning can be responsible for 50-60% of a Texas home’s electricity consumption during the summer months.
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