What is standard wire gauge?

Standard Wire Gauge (SWG) is a system used to measure the diameter of metal wires, particularly in the UK and some other countries. It provides a numerical scale where a lower gauge number indicates a thicker wire, while a higher gauge number indicates a thinner wire. SWG is commonly used in various applications, including electrical wiring and crafting, to ensure consistency and compatibility in wire sizes. The system has been largely replaced by the American Wire Gauge (AWG) in many regions, especially in the United States.