A free, interactive 3-phase AC circuit analyzer. Tap components, enter values, get instant results.
Features
Built for electrical engineering students and professionals who need quick, accurate circuit calculations.
Tap directly on circuit components to enter values. The SVG diagram updates in real time as you configure your circuit.
Visualize voltage and current phasors with an interactive, zoomable diagram. Tap any phasor to see its exact value.
Get per-phase and total apparent, real, and reactive power with power factor for every calculation.
Toggle between balanced and unbalanced systems. Balanced mode auto-fills all phases from a single input.
Runs entirely in your browser. No server, no account, no tracking. Your data never leaves your device.
Designed mobile-first with touch-optimized inputs, bottom-sheet modals, and responsive layouts.
Configurations
Switch between configurations instantly and see how results change in real time.
Live Demo
The full app running live below. Enter values and calculate.
How It Works
No complex setup. Just pick, tap, and calculate.
Choose from Y-Y, Y-Delta, Delta-Y, or Delta-Delta. Set balanced or unbalanced, and select your phase sequence.
Tap any component on the circuit diagram to open the input modal. Enter values in rectangular or phasor form.
Press Calculate to see all voltages, currents, power values, and an interactive phasor diagram.
Free, fast, and private. Start solving 3-phase circuits now.
Launch in Browser Download on iOS