| Castellarano to Bougival | 505.33 mi (813.25 km) |
| Castellarano to Bouguenais | 622.64 mi (1,002.04 km) |
| Castellarano to Boulogne-Billancourt | 500.33 mi (805.21 km) |
| Castellarano to Boulogne-sur-Mer | 601.87 mi (968.62 km) |
| Castellarano to Bourg-de-Peage | 282.89 mi (455.27 km) |
| Castellarano to Bourg-en-Bresse | 292.27 mi (470.36 km) |
| Castellarano to Bourg-la-Reine | 495.41 mi (797.29 km) |
| Castellarano to Bourg-les-Valence | 290.01 mi (466.73 km) |
| Castellarano to Bourges | 439.39 mi (707.13 km) |
| Castellarano to Bourgoin-Jallieu | 277.83 mi (447.13 km) |
| Castellarano to Bressuire | 565.55 mi (910.17 km) |
| Castellarano to Brest | 771.61 mi (1,241.78 km) |
| Castellarano to Bretigny-sur-Orge | 489.57 mi (787.89 km) |
| Castellarano to Breuillet | 493.20 mi (793.74 km) |
| Castellarano to Briancon | 204.86 mi (329.69 km) |
