How big is the square area of China, and how big is the square area of China

China has a land area of 9634057 square kilometers and a territorial sea of about 4.7 million square kilometers.

The land area accounts for about one-fifteenth of the world's total land area, ranking third in the world. The eastern region accounts for it, the central region accounts for it, and the western region accounts for it.

Territorial scope: Land territory: Chinese mainland and its coastal islands, Taiwan and its affiliated islands, Dongsha Islands, Xisha Islands, Zhongsha Islands, Nansha Islands and all other islands belonging to the People's Republic of China (including Diaoyu Dao Islands and Suyan Reef), with a land territory of about 9.6 million square kilometers.

Maritime territory: The entire Bohai Sea and most of the Yellow Sea, East China Sea and South China Sea, as well as the exclusive economic zones under their jurisdiction, totaling about 4.7 million square kilometers, of which all sea areas within the nine-dash line of the South China Sea are about 3 million square kilometers. China's airspace is 35 kilometers above its territory and territorial waters.

The coastline of the eastern and southern continents is more than 18,400 kilometers, the coastline of the islands is more than 14,000 kilometers, and the water area of the inland sea and the border sea is about 4.7 million square kilometers. There are 7,600 large and small islands in the sea area, of which Taiwan Island is the largest, about square kilometers. The land border is more than 20,000 kilometers long, and it is bordered by land with 14 countries and adjacent to 8 countries by sea.

China has a land area of 9596960 square kilometers, about 9.6 million square kilometers, of which 9326410 square kilometers are land area and 270,550 square kilometers are water area.

Its water area includes internal waters (the sea area between the baselines of the territorial sea and the mainland), lakes and reservoirs larger than a certain area, and rivers larger than a certain width, etc., excluding the territorial sea. In China, the statistics of area are generally not included in internal water, but only rivers, lakes and reservoirs.

Model estimate: 9.68 million square kilometersThe earth is an ellipsoid, and when calculating the area of China's territory, it can be divided into small spherical trapezoids with longitude and latitude. Ellipsoidal coefficient of the Earth:

long radius, a=km; Short radius, b = km. It is only necessary to divide the map of China into a large number of spherical trapezoidal t to accumulate the total area.

The land area is about 9.6 million square kilometers, and the water area is about 4.7 million square kilometers.

China has a land area of about 9.6 million square kilometers, and the coastline of the eastern and southern continents is more than 10,000 kilometers, and the water area of the inland sea and the border sea is about 4.7 million square kilometers. There are more than 7,600 small islands in Daliangju, of which Taiwan Island is the largest, with an area of 35,798 square kilometers.