EnergyCostCalc for publishers and educators
Free, browser-based appliance kWh and running-cost calculators in English and Spanish. No registration required.
A reproducible example
1,000 W × 2 hours ÷ 1,000 = 2 kWh daily. At $0.20/kWh this is $0.40 daily and $12.18 per average month. A month uses 30.4375 days; a year uses 365 days. The price is illustrative.
Use and limits
You may quote this example and link to the tools. Enter appropriate contractual rates and average electrical input. Results do not represent an entire bill or guarantee savings. US references are historical EIA averages with the data period shown.
Transparency
Some guides contain identified Amazon affiliate links. Purchases are not required to use the tools. We do not claim physical product testing that we have not performed.