To keep your PC healthy, your average power consumption should ideally stay below . If your calculator shows a 500W draw, a 650W or 750W power supply is the "sweet spot" for efficiency and longevity.
[ P_\textDC total = P_\textCPU + P_\textGPU + P_\textMB+RAM + P_\textstorage + P_\textfans/cooling ] calculate pc power consumption
These are great for quick estimates, though they often lean slightly high to recommend a power supply from their own catalog. To keep your PC healthy, your average power
Used 4 hours gaming per day, 30 days/month. Energy = (525/1000) kW × 4h × 30 = 63 kWh/month Electricity rate = $0.15/kWh → Monthly cost = 63 × 0.15 = $9.45/month Idle (80W DC → ~94W AC) for 20h/day adds: 0.094×20×30=56.4 kWh → $8.46. Total monthly = ~$17.91 To keep your PC healthy