Wattage input
Use the electrical draw, not a look-alike rating
Choose the wattage for the speed you use most often. A plug-in meter is useful because the nameplate may show a maximum rating rather than the lower draw at medium or low speed.
Heating & Cooling
Fan Electricity Cost Calculator
A 60 watt fan costs about $0.09 to run for 8 hours at $0.18 per kWh.
Estimated energy use 0.48 kWh/day
Per day $0.09
Per month $2.59
Per year $31.54
Quick estimate
$0.09 per day
This uses 60 watts, 8 hours per day, and an electricity rate of $0.18 per kWh.
Most household fans use far less electricity than air conditioners, even when running for many hours.
Typical fan wattage
Many fan units fall around 60 watts, with a rough range of 20 to 100 watts. Check the product label, user manual, or manufacturer specifications for the most accurate number.
| Estimate | Watts | Hours per day | Daily cost | Monthly cost |
|---|---|---|---|---|
| Low estimate | 20W | 4 | $0.01 | $0.43 |
| Typical use | 60W | 8 | $0.09 | $2.59 |
| High estimate | 100W | 12 | $0.22 | $6.48 |
Choose realistic inputs for this fan
A portable, pedestal, or box fan is a mostly steady motor load. Power changes with speed, and electronic controls or oscillation add little compared with the fan motor itself.
Runtime input
Count the part of operation that consumes power
Count the hours the fan actually spins, including overnight use. Do not count time when it is switched off but remains plugged in unless you are separately measuring standby power.
How the estimate works
Convert watts to kilowatts, multiply by the number of hours used, then multiply by your electricity rate.
Cost = Watts / 1000 x Hours Used x Electricity RateFor this fan example: 60 / 1000 x 8 x 0.18 = $0.09 per day.
Fan cost factors
These details make this estimate more useful for real-world use.
Why fans are usually inexpensive
Most portable fans use a small electric motor, so their wattage is much lower than appliances that create heat or run a compressor. Even long daily use often costs only a few cents compared with air conditioning.
Fans help most when people are present
A fan does not lower the room temperature by itself. It helps people feel cooler by moving air across skin, so the best savings come from using fans in occupied rooms and raising the air conditioner thermostat when comfortable.
How to lower the cost
Turn fans off in empty rooms because fans cool people, not the room itself.
The easiest way to improve the estimate is to replace the default values with your actual wattage, average runtime, and local electricity rate.
About these numbers
Wattage ranges are practical planning estimates for common household appliances. Actual use can differ by model, age, settings, room conditions, and maintenance.
Sources and methodology
These authoritative sources support the calculation method, default electricity-rate benchmark, and appliance-specific operating context. The wattage range remains a planning estimate; use the nameplate on your own appliance for the most accurate input.
- Electricity Data Browser U.S. Energy Information Administration
Used to benchmark the rounded default residential electricity rate. Your utility bill remains the best source for your own rate.
- Estimating Appliance and Home Electronic Energy Use U.S. Department of Energy
Supports the watts-to-kWh calculation method and the recommendation to check the appliance nameplate or use a power meter.
- Fans for Cooling U.S. Department of Energy
Explains how portable and ceiling fans provide comfort and how their use differs from air conditioning.
Fan electricity cost FAQ
Does fan speed make a meaningful difference to running cost?
Usually yes. Lower speeds generally reduce motor power, although the reduction is model-specific and may not be proportional to the change in airflow. Measure each speed for a precise comparison.
How much does it cost to run a fan?
A 60 watt fan costs about $0.09 to run for 8 hours at $0.18 per kWh.
What wattage should I use?
Use the wattage printed on the appliance label when possible. As a starting estimate, this page uses 60 watts and shows a common range of 20 to 100 watts.
Why is my actual bill different?
Electricity bills include many appliances, fees, taxes, seasonal changes, and utility rate structures. This calculator estimates appliance energy cost only.
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Electricity cost guides
Use these guides to understand the formula, wattage, rates, and ways to lower appliance costs.
MeasurementHow to Measure Appliance Electricity Use AccuratelyMeasure appliance electricity use with label watts, a plug-in meter, annual kWh, or circuit data.MeasurementAppliance Duty Cycle, Runtime and Electricity CostCalculate active runtime and cost for cycling refrigerators, air conditioners, heaters, and pumps.BasicsHow to Calculate Electricity CostUse watts, hours, and price per kWh to estimate running cost, including cost per hour by wattage.Appliance PlanningAverage Appliance WattageCompare typical wattage ranges for common household appliances.Utility BillsElectricity Rate Cost per kWhLearn what cost per kWh means and where to find your rate.