Best pc power supply calculator

Use our PSU Calculator to find the perfect power supply for your PC build.

Wattage calculator

Psu wattage

How many watts should my power supply be for gaming

Psu tier list

How much extra wattage should a psu have

Input your components and the calculator will work out the best PSU taking into account the wattage requirements for your specific parts.

Choosing a power supply unit (PSU) for an upcoming PC build that can handle all the components is vital, but it can be confusing, tedious, and it’s easy to make mistakes.

That's why we built this PSU wattage calculator to help you calculate what power supply you need. Simply select your processor (CPU) and graphics card (GPU), then choose yes or no to the following questions. The calculator will automatically add a little more wattage to account for any power consumption from fans, RAM, storage, and cooling.

So, you don’t need to worry about cutting it too close.

How much extra wattage psu reddit

You’ll then be presented with the CORSAIR PSU for your needs, as well as a more premium option (with higher wattage for more upgradeability if available), and a capable budget version for those looking to save a buck.

How does the PSU calculator work?

It’s simple, really

how many watts should my power supply be

is my psu powerful enough