| Castelldefels to Bougival | 524.13 mi (843.51 km) |
| Castelldefels to Bouguenais | 444.59 mi (715.50 km) |
| Castelldefels to Boulogne-Billancourt | 522.17 mi (840.35 km) |
| Castelldefels to Boulogne-sur-Mer | 652.91 mi (1,050.76 km) |
| Castelldefels to Bourg-de-Peage | 302.28 mi (486.47 km) |
| Castelldefels to Bourg-en-Bresse | 376.98 mi (606.69 km) |
| Castelldefels to Bourg-la-Reine | 518.43 mi (834.34 km) |
| Castelldefels to Bourg-les-Valence | 293.01 mi (471.55 km) |
| Castelldefels to Bourges | 401.58 mi (646.28 km) |
| Castelldefels to Bourgoin-Jallieu | 340.34 mi (547.73 km) |
| Castelldefels to Bressuire | 403.13 mi (648.78 km) |
| Castelldefels to Brest | 584.09 mi (940.00 km) |
| Castelldefels to Bretigny-sur-Orge | 506.80 mi (815.62 km) |
| Castelldefels to Breuillet | 503.51 mi (810.32 km) |
| Castelldefels to Briancon | 342.90 mi (551.85 km) |
