What is an island? It’s a land mass surrounded by water… usually. A sandbar is land, mostly sand, formed by waves. A continent, like Australia, is generally the primary land on a gigantic tectonic plate. Islands are in-between: land and not just piles of sand, but on a smaller-than-global scale. These islands are ranked by approximate land area, measured in square miles and square kilometers.

1. Greenland: 836,330 mi² (2,166,086 km²)
2. New Guinea: 303,381 mi² (785,753 km²)
3. Borneo: 288,869 mi² (748,168 km²)
4. Madagascar: 226,917 mi² (587,713 km²)
5. Baffin Island: 195,928 mi² (507,451 km²)
6. Sumatra: 182,812 mi² (473,481 km²)
7. Honshu: 87,992 mi² (227,898 km²)
8. Victoria Island: 83,897 mi² (217,291 km²)
9. Great Britain: 80,823 mi² (209,331 km²)
10. Ellesmere Island: 75,767 mi² (196,236 km²)
11. Sulawesi: 69,761 mi² (180,681 km²)