Heating · July 2026 rates
Space Heater Electricity Cost
The default example uses 1,500 W for 4 hours/day on 30 days. Change any input below to match your device and usage.
Adjustable calculator
Calculate space heater cost
Uses the selected state's latest EIA residential average unless you enter your own utility rate. Taxes, fixed charges, tiers and time-of-use pricing are not included.
U.S. average example
$32.96 for the default period
180.0 kWh at 18.31¢/kWh.
Important assumption
Power draw is not always constant
Many portable resistance heaters are rated around 1,500 W on their highest setting. Thermostat cycling can reduce actual energy use.
State effect
Same usage, different electricity price
Lower-cost examples
Louisiana$22.90
Nevada$22.99
Utah$23.62
Higher-cost examples
Hawaii$86.40
California$60.50
Maine$58.34
How the estimate works
Energy use equals power in kilowatts multiplied by operating hours. The result in kilowatt-hours is multiplied by the selected electricity price. PowerCostAtlas starts with the latest available EIA residential state average and lets you replace it with the exact cents-per-kWh rate from your utility bill.
The estimate covers electricity consumption only. It does not add fixed monthly utility charges, taxes, demand charges, tiered pricing, or time-of-use adjustments.