"Land mass '' refers to the total surface area of the land of a geographical region or country (which may include discontinuous pieces of land such as islands). It is written as two words to distinguish it from the usage "landmass '', the contiguous area of land surrounded by ocean. Earth 's total land mass is approximately 148,939,063.133 km (57,505,693.767 sq mi) which is about 29.2 % of its total surface. Water covers approximately 70.8 % of Earth 's surface, mainly in the form of oceans and ice formations.
how much area of the earth is covered with land
about 29.2 %