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Estimate electricity costs for appliances based on wattage and usage.
Pro includes appliance-by-appliance breakdown, energy-saving recommendations, and monthly trend tracking.
Cost = (Watts × Hours / 1000) × Rate per kWh. A 100W bulb running 10 hours at $0.12/kWh costs: (100 × 10 / 1000) × $0.12 = $0.12.
The US average is about $0.16 per kWh as of 2025, but varies from $0.10 to $0.45+ depending on state.
Electricity Calculator is part of BriskTool's collection of free online tools. All processing runs entirely in your browser for maximum privacy and speed.