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Master the energy usage calculator with our comprehensive step-by-step guide, complete with examples, tips, and frequently asked questions.

Energy Usage Calculator

Estimate appliance kWh and electricity cost from watts, usage hours, and tariff.

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Calculate electricity consumption and costs for your home appliances

Electricity Rate ($/kWh)

Average US rate is $0.13/kWh

Appliance(type name or select below)

Wattage

Hours/Day

Days/Month