Newegg's PSU Wattage Calculator is Glorious : r/pcmasterrace
Find How Much Power Supply your PC Needs to Run Properly
How to measure your PC's total power consumption
eXtreme Outer Vision - Recommended Power Supply Calculator
Extreme Power Supply Calculator - WINTER TECH SOLUTIONS
Cybenetics ATX v3.0 Spec Power Excursions Calculator - Freeware tool for power supply calculation according to Intel's specifications for load peaks | Download | igor´sLAB