| Grefrath to Brandenburg | 274.39 mi (441.59 km) |
| Grefrath to Brandis | 270.49 mi (435.31 km) |
| Grefrath to Braunfels | 105.44 mi (169.69 km) |
| Grefrath to Braunsbedra | 240.08 mi (386.37 km) |
| Grefrath to Braunschweig | 189.62 mi (305.16 km) |
| Grefrath to Breckerfeld | 48.87 mi (78.66 km) |
| Grefrath to Breisach am Rhein | 234.87 mi (377.98 km) |
| Grefrath to Bremen | 159.39 mi (256.51 km) |
| Grefrath to Bremerhaven | 179.74 mi (289.26 km) |
| Grefrath to Bremervorde | 189.33 mi (304.70 km) |
| Grefrath to Bretten | 190.24 mi (306.17 km) |
| Grefrath to Bretzfeld | 201.93 mi (324.97 km) |
| Grefrath to Brieselang | 296.20 mi (476.69 km) |
| Grefrath to Brilon | 96.15 mi (154.74 km) |
| Grefrath to Bruchhausen-Vilsen | 153.10 mi (246.39 km) |
