ECC
$0.1834U.S. residential average · approximate · editable

RUN · Appliance running cost

See what one appliance adds to your bill.

Change any input and the cost, energy, and arithmetic update together.

For a tariff calculation, include both supply and delivery charges per kWh. A state average includes revenue from fixed charges and taxes; do not add these again when using an average.Use your delivered electricity price, or keep the approximate average.
Find a different appliance · Portable space heater
Search by a common appliance name, such as refrigerator, fan, dryer, or air conditioner. Choose the closest profile, then edit its estimates if you know your model’s values.
Choose the profile closest to your device. The profile supplies editable planning defaults; use your model nameplate or manual when available.43 appliance profiles available.
Consumption input
Look for watts (W) on the appliance nameplate, EnergyGuide label, product manual, or manufacturer specification. A plug-in power meter gives a measured value.
Estimate the hours this appliance actively runs on a typical day. For cycling appliances, use equivalent full-load hours or measure with a smart plug.
Quantity and schedule · 1 appliance(s), 365 active days
Count how many identical appliances use this same power and schedule.
Enter how many days each year the appliance is used. Seasonal devices may be used far fewer than 365 days.

Defaults for Portable space heater are planning estimates, not measured draw.

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Per day

$0.83

3 hours of use

Per year

$301.23

365 active days

Electricity

1,642.5kWh/yr

At the entered schedule

At $0.1834/kWh, this portable space heater costs $0.83 per active day and $301.23 per year.

Source: Manual rate · June 2026 monthly average · User-provided calculation input · selected rate source: Government aggregate · approximate

Published state and national averages include fixed-charge and tax revenue. A manual tariff rate includes only the components you enter. · The local result remains visible while the API is checked. · Daily energy is estimated from rated power, runtime, and appliance quantity; annual energy uses the supplied days per year. · Costs apply the supplied manual flat rate uniformly to daily, average-monthly, and annual energy. · Analysis year 2026 labels the scenario; no calendar or rate escalation adjustment is applied.