About one fifth of the earth's land is Tundra, as the Earth has about 57.5 million square miles (149 million sq kms) of land. This is around 11.5 million sq miles (29.8 million sq kms).
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603,700 square kilometres (233,100 sq mi) and with a coastline of 2,782 kilometres (1,729 mi)
1 square mile = 2.6 square kilometers.
1000 square kilometres
15,000 square feet is equal to approximately 0.0014 square kilometers.
1,200 acres = 4.86 km2