Apparent Power Converter

Apparent Power Converter — Convert VA, kVA, MVA Online

The Apparent Power Converter is a free online tool that converts between volt-amperes (VA), kilovolt-amperes (kVA), megavolt-amperes (MVA), and gigavolt-amperes (GVA). Apparent power is the total power flowing through an AC circuit — the vector sum of real power (watts, doing actual work) and reactive power (VAR, sustaining magnetic fields). UPS systems, transformers, generators, and motors are all rated in VA or kVA, making accurate conversion essential for electrical engineers and facility managers.

Apparent Power vs Real Power — Why VA Matters

When you see a UPS rated at 1500 VA / 900 W, the difference is power factor. Apparent power (VA) measures the total current the supply must deliver, while real power (W) measures the actual energy consumed. Electrical equipment, wiring, and protection devices must be sized for apparent power, not just real power. Mixing the two leads to undersized transformers that overheat, breakers that trip unexpectedly, or generators that fail under load. The Apparent Power Converter delivers accurate VA conversions so you can size equipment correctly.

How to Use the Converter

Enter your apparent power value, select the source unit (VA, kVA, or MVA), and pick the target unit. The conversion appears instantly. The tool supports scientific notation for utility-scale equipment and decimal precision for residential UPS units.

Common Use Cases

Data center engineers size UPS systems and generators. Electrical contractors verify transformer ratings. Solar installers spec inverters in VA. Facility managers analyze power capacity. Students complete electrical engineering homework on AC power. The tool is free, instant, mobile-friendly, runs entirely in your browser, and requires no signup.

Tamer Baghdadi

CEO / Co-Founder