Electricity Cost Calculator
Calculate the operational cost and carbon footprint of running electrical appliances.
Appliance Presets
Operational Specs
Regional Rate Benchmarks
Operational Cost4.50 kWh135.0 kWh1643 kWh
Daily Cost
$0.72
Monthly Cost
$21.60
Yearly Cost
$262.80
Carbon Footprint Impact
Daily CO2:2.14 kg (4.71 lbs)
Monthly CO2:64.1 kg (141.4 lbs)
Yearly CO2:780 kg (1720 lbs)
Based on global grid averages of 0.475 kg CO2 per kWh generated.
How utility operational costs are calculated
Operational electrical expense is derived from total energy consumption (measured in kilowatt-hours, kWh). The core equation is: kWh = (Power in Watts × Hours Used) / 1000. This consumption is multiplied by the utility tariff rate to determine the cost.
Carbon offsets are calculated using global grid carbon intensities (averaging ~0.475 kg CO2 emitted per kilowatt-hour of power produced).
Private & free — this tool runs entirely in your browser.
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