| Grefrath to Bingen am Rhein | 116.70 mi (187.81 km) |
| Grefrath to Birkenau | 160.86 mi (258.87 km) |
| Grefrath to Birkenfeld | 198.45 mi (319.38 km) |
| Grefrath to Bischofsheim | 128.24 mi (206.38 km) |
| Grefrath to Bischofswerda | 339.29 mi (546.03 km) |
| Grefrath to Bisingen | 238.42 mi (383.70 km) |
| Grefrath to Bissendorf | 99.65 mi (160.38 km) |
| Grefrath to Bitburg | 95.01 mi (152.90 km) |
| Grefrath to Bitterfeld | 257.82 mi (414.92 km) |
| Grefrath to Blankenburg | 200.97 mi (323.43 km) |
| Grefrath to Blankenfelde | 309.23 mi (497.66 km) |
| Grefrath to Blaubeuren | 253.61 mi (408.14 km) |
| Grefrath to Bleicherode | 182.31 mi (293.41 km) |
| Grefrath to Blieskastel | 150.74 mi (242.60 km) |
| Grefrath to Blomberg | 124.62 mi (200.56 km) |
