kVA Calculator

The kVA Calculator is the go-to electrical calculator for electricians, engineers, and technicians who need fast, accurate power calculations on the job. Stop wasting time looking up formulas—simply enter any two values and instantly get the third, whether you're sizing generators, UPS systems, or troubleshooting electrical installations.

Handle both single-phase and three-phase calculations with ease. Convert between kVA and Amps, calculate kW from kVA, determine power factor, or work with volts and current in seconds. The app covers all the essential electrical relationships: current measured in Amps, power in Watts or kilowatts, and voltage—making it perfect for load analysis, equipment selection, and compliance checks.

You get three powerful calculation modes in one tool. Single-phase work? Calculate kVA, volts, or amps instantly. Three-phase systems? The same speed and simplicity. Need to factor in power efficiency? Switch to kVA, Power Factor, and kW calculations without leaving the app.

Work your way—the interface supports 16 languages and includes a dark mode for job sites with poor lighting or extended use. Built on over a decade of trusted use by electrical professionals, this calculator delivers the reliability you depend on when accuracy matters.

Stop reaching for multiple apps or scribbling calculations. The kVA Calculator puts essential electrical math at your fingertips, every single day.