Fermi Energy Calculator

Calculate Fermi energy and related properties for free electron systems

About Fermi Energy

The Fermi energy is the highest energy level occupied by electrons at absolute zero temperature. It determines the electrical and thermal properties of metals and semiconductors.

Formulas:

  • 3D: EF = (ℏ²/2m)(3π²n)^(2/3)
  • 2D: EF = πℏ²n/m
  • 1D: EF = (ℏ²/2m)(πn/2)²

Typical Values:

  • Copper: 7.0 eV
  • Silver: 5.5 eV
  • Gold: 5.5 eV
  • Aluminum: 11.7 eV
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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.