G-factor is a dimensionless magnetic moment. It is a dimensionless quantity that represents the magnetic moment and gyromagnetic ratio of a particle or nucleus. The Helion G-factor represents the g factor for helion, the nucleus of a helium-3 ion consisting of two protons and a neutron. This constant is specified with a standard deviation of 0.000 000 050. The value of Helion G-factor is gh=−4.255250613 and it has no symbol as it is a dimensionless quantity.