| Grefrath to Boppard | 93.86 mi (151.05 km) |
| Grefrath to Borgentreich | 126.26 mi (203.20 km) |
| Grefrath to Borgholzhausen | 99.08 mi (159.45 km) |
| Grefrath to Borken | 41.10 mi (66.14 km) |
| Grefrath to Borna | 266.86 mi (429.46 km) |
| Grefrath to Bornheim | 49.22 mi (79.21 km) |
| Grefrath to Bosel | 134.08 mi (215.78 km) |
| Grefrath to Bottrop | 28.25 mi (45.46 km) |
| Grefrath to Bovenden | 155.14 mi (249.68 km) |
| Grefrath to Brackenheim | 196.85 mi (316.80 km) |
| Grefrath to Brake | 164.97 mi (265.49 km) |
| Grefrath to Brakel | 124.98 mi (201.13 km) |
| Grefrath to Bramsche | 101.54 mi (163.42 km) |
| Grefrath to Brand | 41.30 mi (66.46 km) |
| Grefrath to Brand-Erbisdorf | 304.48 mi (490.01 km) |
