Gaming PC Wattage Calculator
Gaming PC Wattage
Estimate total power supply wattage needed for a PC build.
Formula
Recommended PSU = Total Draw x 1.25 rounded to nearest 50
Frequently Asked Questions
How much headroom should a PSU have?
A 20% to 25% buffer above peak draw is recommended.
Does a bigger PSU use more power?
No. The PSU only draws what components need.