What is fermi-level? Forum › Category: Electrochemistry › What is fermi-level? 0 Vote Up Vote Down Jyoti asked 4 years ago This is something that I never understood, about fermi-level of electrons. Can you explain what is meant by fermi-level of an electron? Question Tags: electron 1 Answers 0 Vote Up Vote Down Anonymous answered 3 years ago The level where the probability of finding the electron is 0.5 is called Fermi level.