How To Calculate Psu Wattage |link| Online

Use an online calculator (OuterVision expert mode) + add 100–150W for modern GPUs or future upgrades. Then cross-check with the GPU+CPU rule. If they differ by more than 150W, trust the higher value.

Would you like a simplified checklist to calculate wattage for your specific build?

Buying a PSU that exactly matches the calculated wattage. Always add 20–30% headroom for efficiency, transients, and longevity.