| Siena to Beausoleil | 197.91 mi (318.51 km) |
| Siena to Beauvais | 609.25 mi (980.49 km) |
| Siena to Begles | 598.14 mi (962.61 km) |
| Siena to Belfort | 369.04 mi (593.92 km) |
| Siena to Bellegarde-sur-Valserine | 331.86 mi (534.08 km) |
| Siena to Bellerive-sur-Allier | 434.30 mi (698.93 km) |
| Siena to Bellevue | 574.57 mi (924.69 km) |
| Siena to Belley | 324.97 mi (522.99 km) |
| Siena to Berck-sur-Mer | 670.95 mi (1,079.79 km) |
| Siena to Bergerac | 548.42 mi (882.60 km) |
| Siena to Bernay | 648.87 mi (1,044.25 km) |
| Siena to Berre-l'Etang | 309.54 mi (498.16 km) |
| Siena to Besancon | 374.13 mi (602.10 km) |
| Siena to Bethune | 644.46 mi (1,037.15 km) |
| Siena to Betton | 708.84 mi (1,140.76 km) |
