A6

A6 is a designation used in several different contexts, spanning printing, automotive naming, and road infrastructure. It does not refer to a single entity but to multiple, distinct uses across industries and regions.

In printing, A6 is a standard paper size defined by ISO 216 in the A-series. It measures 105 by 148 millimeters (about 4.1 by 5.8 inches). The A-series sizes are defined by a halving principle: each size is produced by halving the previous size along the longer side, so A6 is obtained by halving A5.

In automobiles, the Audi A6 is a line of mid- to full-size luxury sedans manufactured by the German automaker Audi since 1994. The model range has included several generations and body styles, including the sedan and the Avant (wagon/estate). Engine options vary across generations, reflecting updates in technology and performance.

In road networks, A6 is used as a designation for major routes in several countries. Notable examples include the A6 autoroute in France, which connects Paris to Lyon as part of the Paris–Lyon corridor, and Italy’s Autostrada A6 Torino–Savona, which links Turin with the Ligurian coast. Other countries also employ the A6 designation for significant roads, making it a common but non-specific label in European transportation infrastructure.