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How Much Does a Desktop Computer Cost to Run?

A typical desktop computer (non-gaming) with a monitor uses about 150-200 watts. Laptops are much more efficient at 30-60 watts.

watts
hrs/day
$/kWh

Daily Cost

$0.26

1.6 kWh

Monthly Cost

$7.68

48.0 kWh

Yearly Cost

$93.44

584.0 kWh

For perspective...

At $93.44/year, that's about $8 per month — roughly 19 gallons of gas per year.

Energy-Saving Tips for Your Desktop Computer

  • Set the display to turn off after 5 minutes of inactivity
  • Enable sleep mode after 15-30 minutes of inactivity
  • If you don't need a desktop, a laptop uses 60-70% less power for most tasks