Frequently Asked Questions
What is the average US electricity rate?
The US residential average is around $0.16/kWh, but rates range from under $0.10 in some states to over $0.30 in Hawaii and California. Check your most recent bill for the exact rate.
What is kWh?
A kilowatt-hour is the energy used by a 1,000-watt appliance running for one hour. Your utility charges by the kWh. A 100-watt bulb left on for 10 hours uses 1 kWh.
Why does my actual bill differ from this estimate?
Bills include fixed service charges, tiered pricing, taxes, and delivery fees not captured here. This tool estimates the variable energy cost only.
Can I use this for 240V appliances?
Yes - enter the wattage directly. Wattage already incorporates both voltage and current, so it works the same regardless of the circuit voltage.
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Estimates for informational purposes only.
Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.