| Castenaso to Bougival | 534.33 mi (859.93 km) |
| Castenaso to Bouguenais | 655.64 mi (1,055.15 km) |
| Castenaso to Boulogne-Billancourt | 529.32 mi (851.85 km) |
| Castenaso to Boulogne-sur-Mer | 627.67 mi (1,010.13 km) |
| Castenaso to Bourg-de-Peage | 316.94 mi (510.07 km) |
| Castenaso to Bourg-en-Bresse | 324.79 mi (522.70 km) |
| Castenaso to Bourg-la-Reine | 524.45 mi (844.02 km) |
| Castenaso to Bourg-les-Valence | 324.09 mi (521.57 km) |
| Castenaso to Bourges | 471.57 mi (758.93 km) |
| Castenaso to Bourgoin-Jallieu | 311.43 mi (501.20 km) |
| Castenaso to Bressuire | 598.71 mi (963.54 km) |
| Castenaso to Brest | 803.90 mi (1,293.75 km) |
| Castenaso to Bretigny-sur-Orge | 518.96 mi (835.18 km) |
| Castenaso to Breuillet | 522.79 mi (841.35 km) |
| Castenaso to Briancon | 238.93 mi (384.52 km) |
