A charging roll includes a core member, a rubber base material disposed around the core member, and a surface layer disposed around the rubber base material. The ten point height of irregularities R Z of a surface of the surface layer is equal to or greater than 6.5 micrometers, and is equal to or less than 11.7 micrometers. The mean spacing between peaks S m of the surface of the surface layer is equal to or greater than 16.5 micrometers and being equal to or less than 18.8 micrometers.