Newegg Power Supply Calculator
Estimate the recommended wattage for your PC power supply based on your components. Select your CPU, GPU, and other parts to get a minimum PSU wattage and suggested unit.
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How to use this tool?
- 1 Enter the requested data in the fields above carefully.
- 2 Click the calculate button to process the information instantly.
- 3 Analyze the detailed result and the formula explanation presented below.
- 4 You can print, share, or even embed the calculator on your own site for free.
Unlike traditional static calculators, our tools adapt to specific user needs. They include detailed explanations of the formulas used, ensuring transparency in results. Furthermore, our design is focused on user experience, eliminating distractions and focusing on what really matters: your data and conclusions.
Previous Results
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Frequently Asked Questions
The calculator sums the power draw of all selected components and adds a 20% headroom for stability and future upgrades. The result is rounded up to the nearest 50W to match common PSU ratings.
Headroom ensures your power supply operates efficiently and can handle peak loads, voltage spikes, and potential future upgrades without overloading.
Yes, it covers common consumer components. For server or workstation builds with multiple GPUs, consider a more detailed calculator.
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