How many watts does a gaming PC use?
Updated
Running watts
450 W
Starting watts
450 W
Energy per day
1.8 kWh
A gaming PC typically draws about 450 watts while running. At about 4 h of use a day, that is roughly 1.8 kWh per day. These are typical values from generator wattage charts: the label on your own appliance (or its EnergyGuide sticker) gives the exact figure.
What size generator do I need for a gaming PC?
Plan for at least 540 W: 450 W to get through the start-up surge, plus a 20% margin so the generator never runs flat out. Of the common sizes, a 2,000 W generator is the smallest that fits.
| Generator | Can it run a gaming PC? |
|---|---|
| 2,000 W | Yes |
| 3,500 W | Yes |
| 5,000 W | Yes |
| 7,500 W | Yes |
| 10,000 W | Yes |
| 15,000 W | Yes |
How long will a power station run a gaming PC?
Running continuously at 450 W, assuming 85% of the battery is usable. The station's AC output must also handle the 450 W start-up surge.
| Battery capacity | Runtime |
|---|---|
| 1,000 Wh | about 2 h |
| 2,000 Wh | about 4 h |
| 3,600 Wh | about 7 h |
Running more than one appliance?
Starting surges don't add up the way running watts do. Pick everything you want to power to get your real number.
Open the Generator Size Calculator for Your HomeFrequently asked questions
What size generator do I need to run a gaming PC?
At least 540 W: 450 W to cover the start-up surge, plus a 20% safety margin.
Can a 2,000 watt generator run a gaming PC?
Yes. 2,000 W covers its 450 W starting surge with room to spare.
Can a 3,500 watt generator run a gaming PC?
Yes. 3,500 W covers its 450 W starting surge with room to spare.
How long will a 1,000 Wh power station run a gaming PC?
About 2 h, assuming 85% usable capacity, as long as the station's AC output is rated for 450 W of surge.
Never run a generator indoors or in a garage: see the CPSC safety guide.