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A power supply calculator is a tool that estimates the wattage and amperage your custom PC build needs based on the components you select. Choose Newegg's PC power supply calculator to build the perfect computer for your needs.
Accurately determine the power supply requirements for your PC build. Input your components to get precise wattage recommendations, ensuring optimal performance and stability. Simplify your hardware planning with our user-friendly tool.
What power supply do I need? To answer this question, OuterVision PSU Calculator analyzes dozens of power supplies per each certification category, compares their efficiency, unit price, computer power consumption, overall PC energy cost, and payback period.
Quickly and accurately calculate the power supply and wattage needed for your PC build. Simply enter your components and get recommendations today!
The calculator sums the power required by your CPU, GPUs, memory modules, storage devices, and any additional components to provide a total power requirement. We recommend adding an extra 20% to the result for safety.
Power supply unit (PSU) calculators work by analyzing the components in a computer system and determining the power requirements of those components. They use information such as the wattage of the CPU, GPU, and other components to estimate the total power consumption of the system.
PSU calculator. Please enter all the system components that you use or plan to use in your system in the fields below. To calculate the correct wattage of the power supply we use the peak power consumption of each component in your configuration according to the manufacturer's information.
Calculate the true power usage of a PC. Check how many watts your computer is using when idle or in full load. This online PSU calculator tells you all you need to know.
Find the perfect power supply unit (PSU) for your computer system with our accurate PSU calculator. Determine the ideal wattage based on your components and calculate power requirements for optimal performance.
PSU Wattage Calculator is a tool that provides precise recommendations for power supply units based on your PC’s hardware configuration. Try our Bottleneck Calculator to check compatibility of your CPU and GPU to get maximum performance out of your PC Build.