| Grefrath to Kamenz | 335.07 mi (539.24 km) |
| Grefrath to Kamp-Lintfort | 14.03 mi (22.57 km) |
| Grefrath to Kandel | 176.03 mi (283.29 km) |
| Grefrath to Kappeln | 273.91 mi (440.81 km) |
| Grefrath to Karben | 130.61 mi (210.20 km) |
| Grefrath to Karlsdorf-Neuthard | 180.49 mi (290.47 km) |
| Grefrath to Karlsfeld | 314.13 mi (505.55 km) |
| Grefrath to Karlsruhe | 184.88 mi (297.54 km) |
| Grefrath to Kassel | 136.31 mi (219.36 km) |
| Grefrath to Kaufbeuren | 306.13 mi (492.66 km) |
| Grefrath to Kaufering | 302.72 mi (487.18 km) |
| Grefrath to Kaufungen | 141.61 mi (227.91 km) |
| Grefrath to Kehl | 202.29 mi (325.55 km) |
| Grefrath to Kelheim | 296.29 mi (476.83 km) |
| Grefrath to Kelkheim (Taunus) | 123.93 mi (199.45 km) |
