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.

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.

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.

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.

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.

This is an automatic calculator. Choose your PC's CPU and GPU (or only one of them), and click the "calculate" button. You'll get as a result the minimum PSU you need for this rig and some recommended PSUs

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 …

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 …