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VSWR, return loss & reflection coefficient

Convert between VSWR, return loss (dB), reflection coefficient (Γ), and reflected/transmitted power.

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VSWR, return loss & reflection coefficient

Enter any one value — the others are calculated automatically.

VSWR —
Return loss —
Reflection coefficient (Γ) —
Reflected power —
Transmitted power —
Mismatch loss —

Formulas used

  • VSWR = (1 + Γ) ÷ (1 - Γ)
  • Γ = (VSWR - 1) ÷ (VSWR + 1)
  • Return loss (dB) = -20 × log₁₀(Γ)
  • Reflected power (%) = Γ² × 100
  • Transmitted power (%) = (1 - Γ²) × 100
  • Mismatch loss (dB) = -10 × log₁₀(1 - Γ²)