How Much Electricity Does a Fan, Cooler, or AC Consume?

The simple formula is: units used (kWh) = watts ÷ 1000 × hours used. Multiply the result by your electricity rate to estimate running cost.

Typical usage examples

| Appliance | Typical power | Approx. use at 8 hours/day | |---|---:|---:| | Standard ceiling fan | 75W | 0.6 kWh/day | | BLDC fan | 30W | 0.24 kWh/day | | Air cooler | 170–230W | 1.4–1.8 kWh/day | | LED tube light | 18–20W | about 0.15 kWh/day |

AC consumption varies significantly with tonnage, star rating, room insulation, thermostat settings and outdoor temperature, so use the specific model label for a more reliable estimate.

Easy ways to reduce use

Use LEDs, keep cooler pads and fans maintained, select correctly sized appliances and avoid running heavy loads unnecessarily at the same time.

FAQ

Is a cooler cheaper to run than an AC?

Usually yes, but it provides a different type of cooling and works best in dry conditions.

Does appliance age matter?

Older motors and poorly maintained equipment can become less efficient over time.