Transmission Coefficient Calculator

Calculate transmission and reflection coefficients at impedance boundaries

Formulas Used

Reflection coefficient: r = (Z2 - Z1) / (Z2 + Z1)

Transmission coefficient: t = 2Z2 / (Z2 + Z1)

Power reflection: R = r²

Power transmission: T = 1 - R = 4Z1Z2 / (Z1 + Z2)²

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: University Physics

by Young & Freedman

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.