| Willebroek to Kamenz | 421.62 mi (678.53 km) |
| Willebroek to Kamp-Lintfort | 98.30 mi (158.19 km) |
| Willebroek to Kandel | 218.29 mi (351.31 km) |
| Willebroek to Kappeln | 339.74 mi (546.76 km) |
| Willebroek to Karben | 201.22 mi (323.84 km) |
| Willebroek to Karlsdorf-Neuthard | 228.11 mi (367.11 km) |
| Willebroek to Karlsfeld | 373.51 mi (601.10 km) |
| Willebroek to Karlsruhe | 228.66 mi (367.98 km) |
| Willebroek to Kassel | 222.81 mi (358.58 km) |
| Willebroek to Kaufbeuren | 356.67 mi (574.01 km) |
| Willebroek to Kaufering | 357.19 mi (574.84 km) |
| Willebroek to Kaufungen | 227.94 mi (366.83 km) |
| Willebroek to Kehl | 231.23 mi (372.14 km) |
| Willebroek to Kelheim | 364.55 mi (586.68 km) |
| Willebroek to Kelkheim (Taunus) | 190.18 mi (306.06 km) |
