PC Power Supply Calculator | PSU

This calculator provides an estimate based on typical or maximum power values. Q5: How accurate is this calculation method? A: It provides a good estimate for system planning, but actual power consumption may vary based on specific components, usage patte

Use our Wattage Calculator to determine the ideal PSU for your system. Enter your components to receive accurate wattage recommendations.

我們的計算值將容許您的所有元件能在滿載的狀態下運作。 在電源供應器的負載介於50% ~ 80% 時，將可達到最高效率，讓您的系統處於最佳運作狀態。 由於部分的電源供應器沒有配置足夠的電源線接頭以滿足您所選擇的配置，所以不會出現在結果中。 我們只會推薦您最合適且能夠與您的配置完全相容的電源供應器。 The selected GPU generates high peaks of electric load. As a result some PSUs are excluded from the recomm

Accurately determine your power supply needs for your PC build. Easy to use, reliable results. Optimize your system's performance today!

为PC组装选择合适的电源至关重要，但过程常令人困惑且易出错。 我们的电源功率计算器可助您精准匹配需求：选择中央处理器CPU与显卡GPU，再回答附加问题。

Find the perfect power supply unit (PSU) for your computer system with our accurate PSU calculator. Determine the ideal wattage based on your components and calculate power requirements for optimal performance.

Choose Newegg's PC power supply calculator to build the perfect computer for your needs. Select the components you want, such as the CPU, GPU, and motherboard, and use our PSU wattage calculator to ensure each component receives the right amount of po