| Grefrath to Andrychow | 578.51 mi (931.02 km) |
| Grefrath to Augustow | 717.74 mi (1,155.08 km) |
| Grefrath to Banino | 544.88 mi (876.90 km) |
| Grefrath to Barlinek | 392.34 mi (631.41 km) |
| Grefrath to Bartoszyce | 635.42 mi (1,022.61 km) |
| Grefrath to Bedzin | 561.06 mi (902.93 km) |
| Grefrath to Belchatow | 561.35 mi (903.41 km) |
| Grefrath to Biala Podlaska | 718.63 mi (1,156.53 km) |
| Grefrath to Bialogard | 443.49 mi (713.73 km) |
| Grefrath to Bialy Kamien | 431.86 mi (695.02 km) |
| Grefrath to Bialystok | 720.11 mi (1,158.90 km) |
| Grefrath to Bielawa | 448.43 mi (721.67 km) |
| Grefrath to Bielsk Podlaski | 721.41 mi (1,161.00 km) |
| Grefrath to Bielsko-Biala | 566.34 mi (911.44 km) |
| Grefrath to Bierun | 563.38 mi (906.67 km) |
