Quick answer to how long is the Great Wall of China: 5500.3 miles or 8851.8 kilometers.
Exactly how long is China’s Great Wall? The entire length of the Great Wall of China is 5500.3 miles (8851.8 km). This total length is broken down into 3889.5 miles (6259.6 km) of actual wall still standing, 1387.2 miles (2232.5 km) of natural hills and rivers used as defense barriers and incorporated into the wall, and 223.5 miles (359.37 km) of trenches used for strategic positions in between sections of wall.