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To help compare sizes of different geographic regions, we list here areas between 100 million km
2 and 1,000 million (American billion) km
2.
- Areas smaller than 100,000,000 km2
- 150,000,000 km2 -- Earth land
- 360,000,000 km2 -- Earth water
- 510,000,000 km2 -- Earth total
- Areas larger than 1,000,000,000 km2