UPS Sizing Calculator

Estimate the UPS capacity you need. Enter your total connected load and desired backup time — we'll suggest a starting UPS rating. For a precise specification, we recommend an on-site load study.

Rough guide:
  • Desktop PC + monitor: ~200 W
  • Rack server: ~500 W
  • Network switch / router: ~100 W
  • Small office (5 PCs): ~1200 W
  • POS terminal: ~250 W

Enter your load in watts to see a recommended UPS capacity.