| Grefrath to Brie-Comte-Robert | 246.49 mi (396.69 km) |
| Grefrath to Brignais | 397.89 mi (640.35 km) |
| Grefrath to Brignoles | 548.10 mi (882.08 km) |
| Grefrath to Brive-la-Gaillarde | 480.54 mi (773.35 km) |
| Grefrath to Bron | 392.16 mi (631.12 km) |
| Grefrath to Bruay-sur-l'Escaut | 138.27 mi (222.53 km) |
| Grefrath to Bruges | 548.76 mi (883.15 km) |
| Grefrath to Brumath | 189.90 mi (305.61 km) |
| Grefrath to Brunoy | 249.42 mi (401.40 km) |
| Grefrath to Bruz | 427.48 mi (687.97 km) |
| Grefrath to Bry-sur-Marne | 241.55 mi (388.74 km) |
| Grefrath to Bully-les-Mines | 169.28 mi (272.43 km) |
| Grefrath to Bures-sur-Yvette | 260.10 mi (418.59 km) |
| Grefrath to Bussy-Saint-Georges | 236.10 mi (379.96 km) |
| Grefrath to Buxerolles | 425.23 mi (684.34 km) |
