| Siano to Berga | 670.76 mi (1,079.48 km) |
| Siano to Berja | 986.23 mi (1,587.19 km) |
| Siano to Bermeo | 909.27 mi (1,463.33 km) |
| Siano to Berriozar | 852.93 mi (1,372.66 km) |
| Siano to Betanzos | 1,183.91 mi (1,905.32 km) |
| Siano to Betera | 803.25 mi (1,292.71 km) |
| Siano to Bilbao | 918.15 mi (1,477.62 km) |
| Siano to Binefar | 749.48 mi (1,206.18 km) |
| Siano to Binisalem | 629.82 mi (1,013.60 km) |
| Siano to Blanes | 620.82 mi (999.12 km) |
| Siano to Boadilla del Monte | 972.65 mi (1,565.34 km) |
| Siano to Boiro | 1,219.36 mi (1,962.38 km) |
| Siano to Bolanos de Calatrava | 983.82 mi (1,583.30 km) |
| Siano to Bollullos de la Mitacion | 1,139.80 mi (1,834.33 km) |
| Siano to Bollullos par del Condado | 1,160.74 mi (1,868.03 km) |
