Once entered, the calculator generates a recommended wattage range and presents a filtered list of compatible power supplies available at Newegg. Why Wattage Accuracy Matters
PC Power Supply Calculator – PSU Wattage Calculator - Newegg power supply calculator newegg
If the calculator says 450W, buy a 550W or 600W unit. Once entered, the calculator generates a recommended wattage
Have you used a power supply calculator before, or did you learn the hard way? Let us know in the comments! Let us know in the comments
The calculator gives you the baseline load. You need to add a "safety buffer" (usually 20-30%) to account for:
If you search , you’ll find their free tool. It’s not the flashiest calculator out there, but here’s why I like it:
While a generic brand might be cheaper, an rated PSU will save you money on your electric bill over time and usually offers better voltage stability, which protects your expensive components.