Milli-electron volts to giga-electron volts converter above calculates how many giga-electron volts are in 'X' milli-electron volts (where 'X' is the number of milli-electron volts to convert to giga-electron volts). In order to convert a value from milli-electron volts to giga-electron volts (from meV to GeV) simply type the number of meV to be converted to GeV and then click on the 'convert' button.