188 views 22 Oct 2025

About this Tool

Calculate the ideal PSU wattage for your PC build to ensure stable and efficient power delivery.

Tool

PSU Wattage Calculator

⚡ PSU Wattage Calculator

Calculate the perfect power supply for your PC build

🖥️ Processor (CPU)

CPU Type

🎮 Graphics Card (GPU)

Primary GPU

Additional GPUs:

💾 Memory & Storage

RAM Sticks (DDR4/5): ~3W each

SSD/NVMe Drives: ~5W each

HDD Drives: ~10W each

Optical Drives: ~25W each

🔌 Motherboard & Accessories

Motherboard Type

Case Fans: ~3W each

USB Devices: ~2.5W each

PCIe Cards: ~10W each

RGB/LED Strips: ~10W each

❄️ Cooling System

CPU Cooling

💡 Pro Tip: This calculator provides estimates based on typical usage. For overclocking, mining, or extreme workloads, consider adding 20-30% more headroom.

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Power Supply Unit (PSU) Wattage Calculator