Three Largest Continents by Land Area

1. Asia – 44,579,000 km² (17,196,919 mi²)
2. Africa – 30,370,000 km² (11,726,000 mi²)
3. North America – 24,709,000 km² (9,540,000 mi²)

Together they cover ~55% of Earth's land surface. Next: South America (17.8M km²), Antarctica (14.2M km²), Europe (10.2M km²), Australia (7.7M km²).