Battery Equivalents and Replacements

How Many Watts Does a Hair Dryer Use?

Although hair dryers don't consume as much electricity as larger appliances such as furnaces or washing machines, understanding their energy usage is still crucial in the context of your home's overall power consumption.

Knowing the electricity a hair dryer uses helps in creating a more accurate and comprehensive energy usage profile for your household. This awareness is key to managing and possibly reducing your overall energy expenses.

Published: January 8, 2024.

Hair Dryer Wattage

The wattage of hair dryers can vary significantly depending on the model and its intended use.

Generally, most hair dryers used in household settings consume between 800 to 1800 watts of power. This range is influenced by several factors, including the dryer's design, the heating elements used, and the presence of additional features like multiple heat settings or ionic technology.

Higher-end hair dryers often consume more power, typically ranging from 1800 to 2500 watts. These models are designed for professional use, offering quicker drying times and more heat settings.

The increased wattage in such models translates to higher heat and airflow, which can be particularly useful for thick or long hair but may not be necessary for everyday home use.

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It's also worth noting that the wattage of a hair dryer affects its energy consumption. Using a high-wattage hair dryer for extended periods can lead to noticeable increases in electricity bills. For those concerned about energy efficiency, it's advisable to opt for a model with a lower wattage or one that includes eco-friendly settings.

Note: Using a hair dryer at lower heat is often a double-edged sword - lower heat and lower fan speed may lead to longer hair drying times.

How Much Electricity Does a Hair Dryer Use?

The amount of electricity and, hence, the cost of hair dryer use depends on its wattage and operating time. In this example, a home hair dryer is used 15 minutes per day and a professional unit is used 4 hours per day.

Home Hair Dryer Cost of Use (15 min/day; 7.5h/month)

Hair Dryer Wattage Energy per Month Monthly Cost @0.10 $US/kWh Monthly Cost @0.15 $US/kWh
1000W 7.5 kWh $0.75 $1.125
1250W 9.375 kWh $0.9375  ~$1.40
1500W  11.25 kWh $1.125  ~$1.69
1750W  13.125 kWh $1.3125  ~$1.97
2000W  15 kWh $1.5  $2.25

Professional Hair Dryer Cost of Use (4h/day; 120h/month)

Hair Dryer Wattage Energy per Month Monthly Cost @0.10 $US/kWh Monthly Cost @0.15 $US/kWh
1500W 180 kWh $18 $27
2000W 240 kWh $24 $36
2500W  300 kWh $30 $45

As one can see, time of use is very important when calculating the amount of required energy and, in the end, the costs of using hair dryers.

Note: For those under a time-of-use (TOU) electricity plan, the cost of electricity varies at different times of the day. Typically, operating appliances during off-peak hours, often during the night, is more cost-effective, i.e., cheaper.

Powering Hair Dryers When Being Off-the-Grid or During Blackouts

If You are Off-the-Grid, or there is a blackout, and you want to or have to run a hair dryer, there are several viable options.

For example, if You want to power a 1500W hair dryer for 10 minutes (for a total of 250Wh of energy), then You can use the following:

  • 2000W Power Stations usually feature a battery capacity of 1000-2000Wh, or they can even use external batteries. 2000W or stronger power stations can easily power a 1500W hair dryer for 10 minutes; just be sure that nothing else is connected to the unit, or it may shut off to protect itself from the overload.
  • 2000W Inverter Generator can easily power a 1500W hair dryer; just be sure that the power generator is outside, at a safe distance from the object where you are, due to the dangerous fumes it produces while in use. Most 2000W or stronger power generators may operate 5-10, sometimes even more hours, @75% load or less with a single fuel tank.
  • 2000W Power Inverter can power a 1500W hair dryer if it is connected to a battery that is strong and large enough for such a task. For example, a power inverter with 90% energy efficiency requires ~1667W (~139A @12V) of power and ~278Wh of energy for such a task. Most deep-cycle Group 4D/8D 12V 200Ah lead-acid/AGM or lithium batteries can provide such energy and power without issues.

Solar panels are generally not used to power devices and appliances directly, but they are used to recharge power stations and deep-cycle batteries in off-the-grid situations and during blackouts.