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 ...

Power Supply Calculator - Select computer parts and our online PSU calculator will calculate the required power supply wattage and amperage for your PC.

Our advanced power calculator tool precisely calculates the wattage needed based on your selected components, ensuring optimal performance and compatibility.

A power supply calculator is a tool that estimates the wattage and amperage your custom PC build needs based on the components you select.

Accurately determine the power supply requirements for your PC build. Input your components to get precise wattage recommendations.

Find out how much wattage should you power supply deliver. Find IDLE, minimal and recommended wattage that your power supply should be rated for.

Use our Wattage Calculator to determine the ideal PSU for your system. Enter your components to receive accurate wattage recommendations.

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.

Quickly and accurately calculate the power supply and wattage needed for your PC build. Simply enter your components and get recommendations today!

Click calculate to find the energy consumption of a desktop computer using 100 Watts for 6 hours a day @ $0.10 per kWh.