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Appliance Energy Cost Calculator

Use this calculator to find out exactly how much it costs to run any household appliance. Simply select your appliance type, enter the wattage and daily usage, and get instant cost estimates for daily, monthly, and yearly running costs.

Select your appliance type to auto-fill typical wattage

The power consumption of the appliance in watts

Average hours you use this appliance per day

Your electricity rate per kilowatt-hour

How to Use

1 Find the wattage on your appliance label or manual
2 Estimate how many hours per day you use the appliance
3 Enter your electricity rate from your utility bill
4 View your estimated daily, monthly, and yearly running costs

Formula

Daily kWh daily_kwh = wattage × hours_per_day ÷ 1000
Daily Cost daily_cost = daily_kwh × price_per_kwh
Monthly Cost monthly_cost = daily_cost × 30
Yearly Cost yearly_cost = daily_cost × 365

Example: Running a 1500W Heater

A 1500W space heater used for 8 hours per day at $0.12/kWh costs $1.44 per day, $43.20 per month, or $525.60 per year to run.

Why It Matters

Understanding appliance energy costs helps you make informed decisions about which appliances to upgrade, how to reduce your electricity bill, and where your money is going. Older appliances can cost significantly more to run than energy-efficient models.

Who Uses This Calculator?

  • • Homeowners and renters estimating electricity costs, appliance usage, solar savings, or EV charging expenses.
  • • Solar shoppers, EV owners, and households comparing energy upgrades before requesting quotes or changing usage habits.
  • • Anyone who wants a quick estimate of home energy costs using clear assumptions.

Frequently Asked Questions

How do I find the wattage of my appliance?
Check the label or nameplate on your appliance, usually found on the back or bottom. The wattage is listed in watts (W). You can also check the owner's manual or search online for your specific model.
What is the average electricity rate in the US?
The average residential electricity rate in the US is approximately $0.12 per kWh, but this varies significantly by state. Rates range from about $0.08 in some states to over $0.30 in Hawaii.
Why does my actual bill differ from this calculator?
Actual costs may differ due to variable usage patterns, tiered or time-of-use electricity rates, appliance cycling (like refrigerators), and seasonal variations in energy consumption.
How can I reduce my appliance energy costs?
You can reduce costs by using Energy Star certified appliances, running appliances during off-peak hours, maintaining appliances properly, and unplugging devices when not in use to avoid phantom power draw.

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This calculator provides estimates for informational purposes only. Verify results with a qualified professional for important decisions.