| Castle Rock to Benisa | 5,252.27 mi (8,452.70 km) |
| Castle Rock to Berga | 5,175.02 mi (8,328.39 km) |
| Castle Rock to Berja | 5,206.64 mi (8,379.28 km) |
| Castle Rock to Bermeo | 4,936.83 mi (7,945.05 km) |
| Castle Rock to Berriozar | 5,003.59 mi (8,052.50 km) |
| Castle Rock to Betanzos | 4,718.75 mi (7,594.09 km) |
| Castle Rock to Betera | 5,192.42 mi (8,356.39 km) |
| Castle Rock to Bilbao | 4,935.72 mi (7,943.28 km) |
| Castle Rock to Binefar | 5,124.79 mi (8,247.55 km) |
| Castle Rock to Binisalem | 5,322.58 mi (8,565.86 km) |
| Castle Rock to Blanes | 5,231.20 mi (8,418.81 km) |
| Castle Rock to Boadilla del Monte | 5,015.77 mi (8,072.10 km) |
| Castle Rock to Boiro | 4,714.35 mi (7,587.01 km) |
| Castle Rock to Bolanos de Calatrava | 5,086.61 mi (8,186.10 km) |
| Castle Rock to Bollullos de la Mitacion | 5,047.19 mi (8,122.66 km) |
