| Boucau to Kranenburg | 668.40 mi (1,075.68 km) |
| Boucau to Krefeld | 657.07 mi (1,057.45 km) |
| Boucau to Kressbronn am Bodensee | 604.87 mi (973.44 km) |
| Boucau to Kreuzau | 623.48 mi (1,003.39 km) |
| Boucau to Kreuztal | 677.94 mi (1,091.03 km) |
| Boucau to Kriftel | 652.40 mi (1,049.94 km) |
| Boucau to Kronach | 760.92 mi (1,224.58 km) |
| Boucau to Kronberg | 658.02 mi (1,058.98 km) |
| Boucau to Kronshagen | 910.54 mi (1,465.37 km) |
| Boucau to Krumbach | 655.95 mi (1,055.64 km) |
| Boucau to Kulmbach | 759.66 mi (1,222.55 km) |
| Boucau to Kummersbruck | 753.71 mi (1,212.98 km) |
| Boucau to Kunzell | 715.52 mi (1,151.52 km) |
| Boucau to Kunzelsau | 663.40 mi (1,067.64 km) |
| Boucau to Kurort Steinbach-Hallenberg | 751.41 mi (1,209.28 km) |
