How Many Watts of Electricity does a Air Compressor use?

Real power-use measurements from a air compressor.

How Much Power does a Air Compressor use

Air Compressor: 190 Watts


  • This is a 3 gallon pancake air compressor from Harbor Freight Tools (chinese motor importer). A small motor pushes a piston back and forth forcing air into the tank reservoir.
  • varies from 180 to 200 watts while compressing air, will stop automatically when the tank is completely pressurized.

Power Use

  • Watts: 190
  • Kilowatts: 0.19 Kw.

Operation Cost

  • cost per minute: 4 hundredths of one cent (0.04 ¢)
  • cost per hour: 2.3¢
  • cost per day: 18¢
  • cost per month: $3.47

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Power use of these items was actually tested. Individual items will vary, but these are the actual measurements.