Power Supply Calculator
Calculate total power supply wattage needed for a PC build or electronics project. Add components with their power draw, set headroom percentage, and get a recommended PSU size with efficiency notes.
How to Use Power Supply Calculator
Add your system components (CPU, GPU, RAM, storage, etc.) with their power draw in watts. Set the headroom percentage for safety margin. Click Calculate to get the total power draw, recommended minimum wattage, and suggested standard PSU size.
Step-by-Step Instructions
- Add components with their wattage
- Set headroom percentage (default 20%)
- Click Calculate PSU Requirement
- View recommended PSU size and efficiency notes
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