Online Tools and Calculator

PSU Wattage Calculator

Power supply size for a PC build.

W
W
W

Result

Fill in the fields and tap Calculate to see your result.

How to use the PSU Wattage Calculator

  1. Enter CPU power.
  2. Enter graphics card power.
  3. Tap Calculate to see the result.
  4. Tap Reset to clear the fields and try again.

Last updated: 1 November 2026

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