Earth’s total surface covers an area of 510.072 million square kilometers or 196.94 million square miles, 71% of which is water! That’s why Earth is called the water planet. While our planet is very small compared to giants in our solar system like Jupiter and much larger planets beyond our solar system, it is the only place we know of where humans can live. Pretty much all humans live on the planet’s smaller land surface, but many thousands of other living species also live in the water. Click on the links below to visit the amount of surface area for each country, how much is land and how much is water. Note that the ocean surface is generally not considered part of a country’s listed surface area.