Pevlika

Star–Delta Converter

Convert resistor networks between star (Y) and delta (Δ).

Runs in your browser — nothing is uploaded
Convert

—

For learning, hobby and prototyping use. Not professional electrical design advice — follow applicable codes and standards.

How to use Star–Delta Converter

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

Δ → Y: R₁ = RbRc / (Ra + Rb + Rc)

Y → Δ: Ra = (R₁R₂ + R₂R₃ + R₃R₁) / R₁

Series & Parallel Resistance CalculatorTotal resistance of resistors in series or parallel. Current Divider CalculatorHow current splits between parallel resistors. Ohm’s Law CalculatorVoltage, current, resistance and power from any two values. Voltage Divider CalculatorOutput voltage of a resistor divider — or the resistor you need.