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Choose Newegg's PC power supply calculator to build the perfect computer for your needs. Select the components you want, such as the CPU, GPU, and motherboard, and use our PSU wattage calculator to ensure each component receives the right amount of power.
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.
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.
Power Supply Calculator - Select computer parts and our online PSU calculator will calculate the required power supply wattage and amperage for your PC.
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.
Our Power Supply Calculator tool helps you find the right PSU for your PC. Use it to calculate your PC’s wattage and choose the right PSU.
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. You can save your configuration and load it anytime if needed. USB 3.2 Gen. 2 is used for power transmission.
Use our Wattage Calculator to determine the ideal PSU for your system. Enter your components to receive accurate wattage recommendations.
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.
Use our PSU Calculator to find the perfect power supply for your PC build. Input your components and the calculator will work out the best PSU taking into account the wattage requirements for your specific parts.