Science Fact Finder | The Earth - How Much Of The Earth's Surface Is Land And How Much Is Water?

How much of the Earth's surface is land and how much is water?

Land covers 29.22 percent of the Earth's surface. This is about 57.5 million square miles (149 x 10⁶ square kilometers). Water covers the other 70.78 percent of the Earth's surface. This is about 139.4 million square miles (361 x 10⁶ square kilometers).

Source: Barnes-Svarney, Patricia. The New York Public Library Science Desk Reference, p. 372.

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