What is the UK’s longest motorway?

The UK’s longest motorway is the M6. Stretching over 230 miles (370 kilometers), the M6 runs from the Midlands in England, starting in the city of Rugby, and continues north through key cities such as Birmingham, Manchester, and Liverpool, before reaching Scotland. It is one of the busiest motorways in the country, connecting major urban areas and facilitating long-distance travel across the UK. The M6 is a crucial transport route for both commercial and leisure traffic, and it plays a vital role in the national economy.