| Boom to Kranenburg | 85.87 mi (138.20 km) |
| Boom to Krefeld | 96.78 mi (155.75 km) |
| Boom to Kressbronn am Bodensee | 336.84 mi (542.09 km) |
| Boom to Kreuzau | 95.39 mi (153.52 km) |
| Boom to Kreuztal | 156.64 mi (252.09 km) |
| Boom to Kriftel | 192.67 mi (310.07 km) |
| Boom to Kronach | 310.27 mi (499.33 km) |
| Boom to Kronberg | 191.48 mi (308.16 km) |
| Boom to Kronshagen | 327.97 mi (527.82 km) |
| Boom to Krumbach | 331.97 mi (534.25 km) |
| Boom to Kulmbach | 317.19 mi (510.47 km) |
| Boom to Kummersbruck | 351.30 mi (565.36 km) |
| Boom to Kunzell | 236.38 mi (380.42 km) |
| Boom to Kunzelsau | 265.99 mi (428.06 km) |
| Boom to Kurort Steinbach-Hallenberg | 271.42 mi (436.81 km) |
