| Gravelines to Beyne-Heusay | 155.91 mi (250.91 km) |
| Gravelines to Bierbeek | 115.46 mi (185.81 km) |
| Gravelines to Bilzen | 147.82 mi (237.89 km) |
| Gravelines to Binche | 98.01 mi (157.74 km) |
| Gravelines to Bissegem | 48.89 mi (78.68 km) |
| Gravelines to Blankenberge | 48.04 mi (77.32 km) |
| Gravelines to Blegny | 158.90 mi (255.72 km) |
| Gravelines to Bocholt | 150.37 mi (242.00 km) |
| Gravelines to Boechout | 102.90 mi (165.60 km) |
| Gravelines to Bonheiden | 104.63 mi (168.39 km) |
| Gravelines to Boom | 97.52 mi (156.94 km) |
| Gravelines to Boortmeerbeek | 106.09 mi (170.74 km) |
| Gravelines to Borgerhout | 101.56 mi (163.45 km) |
| Gravelines to Borgloon | 140.71 mi (226.45 km) |
| Gravelines to Bornem | 91.81 mi (147.76 km) |
