Question: 1 milli electron volt is equal to?
Answer: 1 meV = 0.001 eV. 1 x 0.001 eV = 0.001 Electron Volt. Definition: In relation to the base unit of [energy] => (joules), 1 Millielectron Volt (meV) is equal to 1.60218E-22 joules, while 1 Electron Volt (eV) = 1.60218E-19 joules.