Appliance Electricity Cost Calculator
Cost by Wattage
Calculate running cost from device wattage
Common Appliance Lookup
Estimate cost for common household appliances
Formula
Cost = (Watts × Hours / 1000) × Rate per kWh | Monthly = Daily × 30 | Yearly = Daily × 365
Frequently Asked Questions
How do I calculate the electricity cost of an appliance?
Multiply the wattage by hours of use, divide by 1000 to get kWh, then multiply by your electricity rate. For example: 1500W heater × 8 hours = 12,000 Wh = 12 kWh × $0.15/kWh = $1.80 per day, or about $54/month.
What is the average electricity rate in the US?
The US average residential rate is approximately $0.12-0.16/kWh, but varies widely by state. Hawaii is the highest (~$0.35/kWh), while states like Louisiana and Idaho are among the lowest (~$0.09-0.10/kWh). Check your utility bill for your exact rate.
How much does it cost to run a space heater?
A typical 1500W space heater running 8 hours per day costs about $1.20-1.80/day ($36-54/month) depending on your electricity rate. Electric heating is expensive compared to gas. Consider using it to supplement, not replace, central heating.
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