How manny continents?

1. Asia - 44,700,000 sq km

2. Africa - 30,300,000 sq km

3. North America - 24,360,000 sq km

4. South America - 17,770,000 sq km

5. Antarctica - 14,000,000 sq km (island continent)

6. Europe - 9,940,000 sq km

7. Australia - 7,686,850 sq km (island continent)