Question: how many kilometers is the great wall of china?
Answer: The Great Wall of China is also known as the wanli changcheng or Long Wall of 10,000 Li (a li is a measure of distance, approximately 1/3 of a mile). The main wall is around 2,145 miles (3,460 km) long with an extra 1,770 miles (2,860 km) of branches and spurs.