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How Much Does It Cost to Run a Ceiling Fan in California? (2026)

Ceiling fans do not cool the air, they cool people through air movement. At 15 to 90 watts they cost a tiny fraction of an air conditioner, which is why the best strategy is to run both and raise the AC thermostat.

A typical ceiling fan (50 W) costs $0.017 per hour, or about $4.20 per month at 8 hours a day in California. Cheap to run

WattagePer hourPer dayPer monthPer year
Low (15 W)$0.005$0.042$1.26$15.33
Typical (50 W)$0.017$0.14$4.20$51.10
High (90 W)$0.032$0.25$7.56$91.98

Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 8 h/day ≈ 146 kWh per year.

In California, with electricity at $0.35 per kWh (source: EIA Table 5.6.A, 2026-06), a typical ceiling fan costs $0.017 per hour and about $51.10 per year at 8 hours a day. That is about 94% more than the US national average of $2.16 per month, because electricity in California costs $0.35 per kWh against $0.18 nationally. Each $1.00 of electricity buys roughly 57.1 hours of use.

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How to lower the cost of running a ceiling fan

Frequently asked questions

How much does it cost to run a ceiling fan all day?

A 50 watt fan on for 24 hours uses 1.2 kWh, about the same as a window AC unit running for one hour.

Does a ceiling fan use more electricity on high?

Yes, roughly three times more than on low, but still far less than any cooling appliance.

Is it cheaper to run a fan or an AC?

A fan, by a factor of 10 to 30. But a fan cannot lower the room temperature.

Cost by region

Related appliances

Use the generic electricity cost calculator →