| Rockville Centre to Kidricevo | 4,249.60 mi (6,839.06 km) |
| Rockville Centre to Kobarid | 4,163.13 mi (6,699.92 km) |
| Rockville Centre to Kobilje | 4,264.34 mi (6,862.79 km) |
| Rockville Centre to Kocevje | 4,237.27 mi (6,819.22 km) |
| Rockville Centre to Komen | 4,184.95 mi (6,735.02 km) |
| Rockville Centre to Komenda | 4,204.44 mi (6,766.40 km) |
| Rockville Centre to Koper | 4,193.29 mi (6,748.45 km) |
| Rockville Centre to Kostanjevica na Krki | 4,253.72 mi (6,845.70 km) |
| Rockville Centre to Kostel | 4,244.05 mi (6,830.14 km) |
| Rockville Centre to Kozje | 4,251.32 mi (6,841.84 km) |
| Rockville Centre to Kranj | 4,196.40 mi (6,753.45 km) |
| Rockville Centre to Kranjska Gora | 4,163.77 mi (6,700.94 km) |
| Rockville Centre to Krizevci | 4,258.12 mi (6,852.79 km) |
| Rockville Centre to Krsko | 4,252.52 mi (6,843.77 km) |
| Rockville Centre to Kuzma | 4,246.37 mi (6,833.87 km) |
