Electricity Cost Calculator
Calculate the cost to run any electrical device
W
hrs/day
$/kWh
days
Frequently Asked Questions
How do I find my device's wattage?
Check the device's label or manual. Most appliances display wattage in watts (W) or kilowatts (kW). If you only have amps, multiply amps by voltage (usually 120V or 240V).
How do I find my electricity rate?
Check your electric bill. The rate is typically listed as $/kWh (dollars per kilowatt-hour). The US average is around $0.15/kWh but varies by state.
What is a kilowatt-hour (kWh)?
A kilowatt-hour is the energy consumed by a 1,000-watt device running for one hour. It's the standard unit utilities use to bill electricity.