VSWR and Return Loss Calculator

Calculate Voltage Standing Wave Ratio (VSWR) and Return Loss for transmission lines and matching networks.

About this calculator

Calculate Voltage Standing Wave Ratio (VSWR) and Return Loss for transmission lines and matching networks.

Engineering relationship

VSWR = (1 + |Γ|) / (1 − |Γ|)

How to use the tool

Enter values using the units shown with the calculator fields and review the reported results. Confirm that the units and engineering assumptions match your application before using a result in a design.