How many feet of baseboard does a house have?

As a rough planning figure, about one foot for every 10 to 12 square feet of heated floor in a cold climate, so a 1,500 square foot house often has 40 to 60 feet. Measure yours — it is the input that moves this number most.

Where do I find watts per foot?

On the label at the end of the unit, or stamped inside the cover. Standard residential baseboard is 250 watts per foot. Units at 187 and 200 watts per foot exist and are usually older or low-profile.

Is this my whole electricity bill?

No, only the heating. Everything else in the house is costed on the appliance pages, and the bill-check calculator compares a real bill against your state's average.

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What baseboard heating costs for a whole house

A single six-foot baseboard section draws about 1,500 watts, and almost no house has only one. Costing a section at a time understates the bill by however many sections are actually running, so this totals the whole house instead: measure the baseboard, say how long the thermostats call for heat, and the arithmetic is done at your state's average price.

Total baseboard length in the house (feet)Watts per footHours a day the thermostats call for heatDays in your heating seasonYour state

What to know

Resistance heat is exactly one kilowatt-hour in for one kilowatt-hour of heat out, so there is no efficiency rating to shop for and two baseboard heaters of the same wattage cost the same to run. The only levers are the hours, the setpoint and the insulation.
The hours figure is the time the thermostat is actually calling for heat, not the time the switch is left on. In a reasonably insulated room in a cold month that is commonly 30 to 60% of the day, and much less in a shoulder month.
Zoning is where baseboard genuinely wins: every room has its own thermostat, so rooms nobody is in can sit at 55°F. A single ducted system cannot do that.
If the season total comes out far above your real winter bills, the usual reason is that you do not heat the whole house. Enter only the length you actually run.

Questions

How many feet of baseboard does a house have?: As a rough planning figure, about one foot for every 10 to 12 square feet of heated floor in a cold climate, so a 1,500 square foot house often has 40 to 60 feet. Measure yours — it is the input that moves this number most.
Where do I find watts per foot?: On the label at the end of the unit, or stamped inside the cover. Standard residential baseboard is 250 watts per foot. Units at 187 and 200 watts per foot exist and are usually older or low-profile.
Is this my whole electricity bill?: No, only the heating. Everything else in the house is costed on the appliance pages, and the bill-check calculator compares a real bill against your state's average.

State rates are averages of what residential customers actually paid (July 2026), from EIA. Your own plan can differ. Everything on this page is computed in your browser; nothing is sent anywhere.