How Much Does a Ceiling Fan Cost to Run Per Month?

A typical 35-watt ceiling fan running eight hours a day costs about $1.58 per month at the April 2026 U.S. average residential electricity price. The estimate is 35 watts × 8 hours × 30 days ÷ 1,000 × $0.1883/kWh, and it should be adjusted for the fan's actual speed and schedule.

Key takeaways

• A 35-watt fan uses 0.035 kWh for each hour it runs.
• At 18.83¢/kWh, 35 watts costs about 0.66¢ per hour.
• Eight hours a day for 30 days is roughly $1.58 a month.
• Fan cost is usually small; the larger question is whether air movement lets you adjust cooling or heating settings comfortably.

What does a ceiling fan add to an electric bill?

For a 35-watt fan at eight hours a day, the estimate is about $1.58 a month at the cited U.S. average rate. A low-speed 15-watt fan is lower; a 60-watt high-speed fan is higher. Unlike a refrigerator, ceiling fans do not have a certified annual-kWh label, so the honest method is watts times the hours you run them.

How the calculation works

The example uses 0.035 kW × 8 hours/day × 30 days = 8.4 kWh/month. At $0.1883 per kWh, 8.4 kWh costs $1.58. The same formula works for a fan's actual measured or labeled wattage and a local utility rate.

The site uses the same transparent calculation in its methodology.

Why do ceiling-fan monthly costs differ?

Motor design, blade size, speed, light kit use, and schedule all affect wattage. A fan on a low setting does not draw the same amount as one on high. ENERGY STAR evaluates ceiling fans for airflow efficiency rather than giving a universal annual-kWh label, so hour-by-hour inputs are the right way to estimate cost.

How to get a more useful number

Use the fan's wattage or a plug-in measurement, set the actual hours per day, and choose your state rate. Keep the fan only in occupied rooms: it cools people through air movement rather than lowering the room temperature by itself.

Start with WattCost's ceiling-fan calculator.

For the related buying decision, see the ceiling-fan and air-conditioner savings guide.

FAQ

How much does a ceiling fan cost per hour? At 35 watts and 18.83¢/kWh, the estimate is about 0.66¢ per hour. Divide the fan's watts by 1,000 and multiply by your rate to calculate a different fan or electricity price.

Does a ceiling fan cost less than air conditioning? The fan itself uses much less electricity than compressor cooling. Whether it lowers the whole-house bill depends on whether it lets occupants raise the cooling set point while staying comfortable.

Should a ceiling fan run all night? If the room is occupied and the air movement improves comfort, the example cost is modest. Turn it off in empty rooms because the fan cools occupants, not the room's air temperature.

Do ceiling-fan lights change the estimate? Yes. The calculation here covers the fan motor only. Add the light fixture's wattage and hours separately for a complete monthly estimate.

Data notes & sources

This guide uses WattCost's 35-watt, eight-hour-per-day calculator default and EIA's April 2026 U.S. average residential price. It is a transparent estimate, not a certified annual-kWh measurement.

Product-test context: U.S. EIA April 2026 residential electricity-price table.

Electricity-rate context: U.S. EIA April 2026 residential electricity-price table.