| Duffel to Kamenz | 414.92 mi (667.74 km) |
| Duffel to Kamp-Lintfort | 91.39 mi (147.08 km) |
| Duffel to Kandel | 214.60 mi (345.37 km) |
| Duffel to Kappeln | 333.75 mi (537.12 km) |
| Duffel to Karben | 195.57 mi (314.74 km) |
| Duffel to Karlsdorf-Neuthard | 224.09 mi (360.63 km) |
| Duffel to Karlsfeld | 368.98 mi (593.81 km) |
| Duffel to Karlsruhe | 224.91 mi (361.95 km) |
| Duffel to Kassel | 216.09 mi (347.77 km) |
| Duffel to Kaufbeuren | 352.78 mi (567.74 km) |
| Duffel to Kaufering | 353.00 mi (568.10 km) |
| Duffel to Kaufungen | 221.24 mi (356.05 km) |
| Duffel to Kehl | 228.57 mi (367.85 km) |
| Duffel to Kelheim | 359.34 mi (578.30 km) |
| Duffel to Kelkheim (Taunus) | 184.76 mi (297.34 km) |
