Closer than most people guess: Argentina (2,780,400 km²) is only about 28% larger than Greenland (2,166,086 km²).
Argentina sits in South America, Greenland in North America. On the old Mercator map the latitude gap distorted how large each felt beside the other; at true size the answer is simply 1.3×.
The old map muddied it further: Mercator inflates Argentina about 1.5× and Greenland about 11.8×, so on a Mercator-style map this pair appears 6.2× apart instead of the true 1.3×.
Greenland fits 1× into Argentina.
Argentina vs Greenland: key figures
| Measure | Argentina | Greenland |
|---|
| True area | 2,780,400 km² · #8 | 2,166,086 km² · #12 |
| Mercator inflation | 1.5× | 11.8× |
| Apparent on Mercator | 4,111,934 km² | 25,576,494 km² |