What is the average distance of a city block?

The average distance of a city block varies widely depending on the city and its layout. In many U.S. cities, a typical city block measures about 1/8 of a mile (approximately 200 meters) on each side. However, in some urban areas, especially those with a grid layout, blocks can be longer, often reaching up to 1/4 mile (about 400 meters). In contrast, blocks in older cities may be shorter or irregularly shaped.