The Biggest Country in the world is Russia with a land area of 17,125,191 Km² (6,612,073 mi²), equivalent to 11% of the total world’s landmass of 148,940,000 Km² (57,510,000 square miles). Below is the list of the largest 20 countries and, following, the full list of all countries and dependencies ranked by land area.
| No. | Countries | Area Sq. km | Area Sq. mi |
| 1 | Russia | 17,125,191 | 6,612,073 |
| 2 | Canada | 9,984,670 | 3,854,082 |
| 3 | United States | 9,631,418 | 3,717,727 |
| 4 | China | 9,596,960 | 3,704,426 |
| 5 | Brazil | 8,511,965 | 3,285,618 |
| 6 | Australia | 7,686,850 | 2,967,124 |
| 7 | India | 3,287,590 | 1,269,009 |
| 8 | Argentina | 2,766,890 | 1,068,019 |
| 9 | Kazakhstan | 2,717,300 | 1,048,877 |
| 10 | Sudan | 2,505,810 | 967,243 |
| 11 | Algeria | 2,381,740 | 919,352 |
| 12 | Congo, Democratic Republic of the | 2,345,410 | 905,328 |
| 13 | Mexico | 1,972,550 | 761,404 |
| 14 | Saudi Arabia | 1,960,582 | 756,785 |
| 15 | Indonesia | 1,919,440 | 740,904 |
| 16 | Libya | 1,759,540 | 679,182 |
| 17 | Iran | 1,648,000 | 636,128 |
| 18 | Mongolia | 1,564,116 | 603,749 |
| 19 | Peru | 1,285,220 | 496,095 |
| 20 | Chad | 1,284,000 | 495,624 |
The Earth has formed over 4.5 billion years ago, according to the radiometric dating and other sources of evidence. It is a dynamic planet because it is constantly undergoing changes inside and outside. The Earth is the third planet from the Sun and the only astronomical object known to harbor life.