Electric Bill Device Cost Calculator
Electric Bill Device Cost
Calculate how much any electronic device adds to your monthly electric bill based on wattage, hours of use, and local electricity rate.
Formula
Monthly kWh = ((Watts x Hours/Day x Days/Week) + (Standby x Remaining Hours x 7)) x 4.345 / 1000; Monthly Cost = Monthly kWh x Rate; Annual Cost = Monthly Cost x 12
Frequently Asked Questions
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