| Boulogne-Billancourt to Kobarid | 557.58 mi (897.34 km) |
| Boulogne-Billancourt to Kobilje | 672.96 mi (1,083.03 km) |
| Boulogne-Billancourt to Kocevje | 630.76 mi (1,015.12 km) |
| Boulogne-Billancourt to Komen | 577.28 mi (929.05 km) |
| Boulogne-Billancourt to Komenda | 601.08 mi (967.34 km) |
| Boulogne-Billancourt to Koper | 584.63 mi (940.87 km) |
| Boulogne-Billancourt to Kostanjevica na Krki | 649.91 mi (1,045.92 km) |
| Boulogne-Billancourt to Kostel | 636.94 mi (1,025.06 km) |
| Boulogne-Billancourt to Kozje | 649.81 mi (1,045.77 km) |
| Boulogne-Billancourt to Kranj | 592.77 mi (953.97 km) |
| Boulogne-Billancourt to Kranjska Gora | 560.67 mi (902.30 km) |
| Boulogne-Billancourt to Krizevci | 664.08 mi (1,068.73 km) |
| Boulogne-Billancourt to Krsko | 649.70 mi (1,045.58 km) |
| Boulogne-Billancourt to Kuzma | 655.76 mi (1,055.35 km) |
| Boulogne-Billancourt to Lasko | 633.45 mi (1,019.44 km) |
