kr = 4.8mm / eu 4mm https://www.worldstandards.eu/electricity/plugs-and-sockets/ Plug & socket typesPlug & socket types around the world There are currently 15 types of domestic electrical outlet plugs in use worldwide, each of which has been assigned a letter by the US Department of Commerce International Trade Administration (ITA), starting with A andwww.worldstandards.eu  https://en.wikipedia..