Hydrogen Energy Levels Calculator
Compute hydrogen atomic energy levels (Bohr model) in electronvolts.
How to Use This Calculator
1
Enter n
Choose the principal quantum number n = 1, 2, 3, …
2
Calculate
The energy level in eV will be displayed.
Formula
E_n = -13.6 eV / n²
Example: n = 3 → E₃ = -13.6 / 9 = -1.511 eV
About Hydrogen Energy Levels Calculator
Computes hydrogen atomic energy levels based on the Bohr model; helpful for quick estimates and spectroscopic transitions.
Frequently Asked Questions
Is this exact?
This is the Bohr result; fine structure and quantum corrections are not included.
What about other atoms?
Use hydrogen-like formulas with atomic number Z, or see the Bohr Model calculator.