HomeUPS CalculatorUPS Calculator Power & Battery CalculatorUPS Battery Backup Sizing & Runtime CalculatorDetermine the exact VA rating and battery capacity needed to run your devices during power outages. Quick Device Presets — Custom Wattage —Starlink Standard Dishy & Wi-Fi Router (60 Watts)Desktop Gaming PC + Monitor (450 Watts)3D Printer in Operation (200 Watts)Home Theater Projector (250 Watts)Compact Mini Fridge (120 Watts Run / Surge) Total Power Load (Watts): 100W Desired Backup Runtime: 30 Minutes Calculate Recommended UPS ⚡ Recommended UPS Size:1000VA / 600W Waveform Type: Pure Sine Wave Minimum VA Rating 1000 VA Continuous Wattage Cap 600 Watts Est. Actual Runtime 34 Mins Critical Safety Advice: