Star to Delta Conversion Tool

Convert between Star (Wye) and Delta (Mesh) resistor networks. Calculate equivalent values for circuit simplification and analysis.

Convert Star connection to Delta equivalent

Ra (Ω)

Rb (Ω)

Rc (Ω)

Delta (Δ) Model

Convert Delta connection to Star equivalent

R1 (Ω)

R2 (Ω)

R3 (Ω)

Star (Y) Model

Understanding the Conversion

To find Delta resistances (R1, R2, R3) from Star resistances (Ra, Rb, Rc):

R1 = (RaRb + RbRc + RcRa) / Rc
R2 = (RaRb + RbRc + RcRa) / Ra
R3 = (RaRb + RbRc + RcRa) / Rb

To find Star resistances (Ra, Rb, Rc) from Delta resistances (R1, R2, R3):

Ra = (R1 * R3) / (R1 + R2 + R3)
Rb = (R1 * R2) / (R1 + R2 + R3)
Rc = (R2 * R3) / (R1 + R2 + R3)