UPS Sizing (Data Center) Calculator
Size UPS modules and battery banks for data center backup power with redundancy and runtime requirements.
Inputs
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Results
UPS modules needed
4
Module size (kVA each)100
Total UPS capacity (kVA)400
IT load (kVA)222.22
Battery capacity (kWh)65.79
Battery (Ah)137.1
UPS losses (kW)12.77
Battery footprint (ft²)197
Total Ups Kw360
Ah Per String137.06
Battery Weight (lbs)3,626.64
How to Use This Calculator
- Enter total critical IT load in kW.
- Set UPS efficiency and desired runtime in minutes.
- Input battery string voltage and design temperature.
- Review the required UPS kVA rating and battery capacity in amp-hours.
- Add N+1 module redundancy to ensure maintenance without loss of critical protection.
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