| Castrolibero to Bougival | 957.40 mi (1,540.79 km) |
| Castrolibero to Bouguenais | 1,044.88 mi (1,681.57 km) |
| Castrolibero to Boulogne-Billancourt | 952.51 mi (1,532.91 km) |
| Castrolibero to Boulogne-sur-Mer | 1,058.66 mi (1,703.75 km) |
| Castrolibero to Bourg-de-Peage | 693.39 mi (1,115.91 km) |
| Castrolibero to Bourg-en-Bresse | 731.11 mi (1,176.61 km) |
| Castrolibero to Bourg-la-Reine | 947.47 mi (1,524.81 km) |
| Castrolibero to Bourg-les-Valence | 696.75 mi (1,121.32 km) |
| Castrolibero to Bourges | 876.13 mi (1,409.99 km) |
| Castrolibero to Bourgoin-Jallieu | 704.56 mi (1,133.88 km) |
| Castrolibero to Bressuire | 986.66 mi (1,587.88 km) |
| Castrolibero to Brest | 1,200.73 mi (1,932.38 km) |
| Castrolibero to Bretigny-sur-Orge | 940.62 mi (1,513.78 km) |
| Castrolibero to Breuillet | 943.58 mi (1,518.54 km) |
| Castrolibero to Briancon | 622.97 mi (1,002.57 km) |
