Home › Calculators › Modern Physics › Bohr Energy Level Calculator

Bohr Energy Level Calculator

Find the energy of an electron in a hydrogen energy level, or the photon energy released in a jump between two levels of the atom.

E_n = −13.6 ÷ n² eV

Hydrogen's electron can only sit in fixed energy levels, and the level energy is negative because the electron is bound.

Energy level n ()

Lower level n₁ ()

Upper level n₂ ()

Level energy

— eV

The calculation runs entirely in your browser — no data leaves your device. Change any number and the answer updates instantly.