Energy Units Converter Enter your energy value in the box with the appropriate units, then press "tab" or click outside of the input box. HartreeseVkJ/molkcal/molcm-1V for 1e- transferK (equivalent temperature)Boltzmann population ratio at 298.15KGHznm-1 Boltzmann Populations Change the temperature and degeneracies: K upper degeneracy= % lower degeneracy= % Electrochemical Voltage Change the number of electrons transferred, z= Then, V= V