Quantum Tunneling Calculator
Calculate the transmission coefficient for quantum tunneling through a rectangular potential barrier.
Electron mass: 9.109e-31 kg
Results
Transmission Coefficient (T): 7.1395e-4
Reflection Coefficient (R): 0.999286
Decay Constant (κ): 3.6224e+9 m⁻¹
Penetration Depth: 0.2761 nm
Formula
T = e^(-2κL)
where κ = √(2m(V₀-E))/ℏ
V₀ = barrier height, E = particle energy, L = barrier width
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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.