PC Power Supply Wattage Calculator
Estimate the power supply wattage needed for your PC build. Free.
Use the Psu Wattage Estimator →Calculate the recommended power supply wattage for your PC. Select your CPU, GPU, and components to get a wattage estimate and PSU recommendation.
It’s completely free — no signup, no credit card, no hidden limits. All processing runs locally in your browser. Your files never leave your device.