Apparent Power Converter
Watts to VA Calculator
Convert Watts (W) to Apparent Power in Volt-Amperes (VA) to properly size UPS battery backups, transformers, and inverter capacities.
Conversion Inputs
Enter load watts and equipment power factor.
Apparent Power
1,250 VA
Required UPS / Transformer Sizing
kVA Equivalent:
1.25 kVA
Recommended 20% Buffer:
1,500 VA