Closer than most people guess: Greenland (2,166,086 km²) is only about 23% larger than Libya (1,759,540 km²).
Greenland sits in North America, Libya in Africa. On the old Mercator map the latitude gap distorted how large each felt beside the other; at true size the answer is simply 1.2×.
The old map muddied it further: Mercator inflates Greenland about 11.8× and Libya about 1.3×, so on a Mercator-style map this pair appears 11.5× apart instead of the true 1.2×.
Libya fits 1× into Greenland.
Greenland vs Libya: key figures
| Measure | Greenland | Libya |
|---|
| True area | 2,166,086 km² · #12 | 1,759,540 km² · #17 |
| Mercator inflation | 11.8× | 1.3× |
| Apparent on Mercator | 25,576,494 km² | 2,217,020 km² |