| Castro Daire to Blumberg | 941.30 mi (1,514.87 km) |
| Castro Daire to Bobenheim-Roxheim | 990.65 mi (1,594.29 km) |
| Castro Daire to Bobingen | 1,049.80 mi (1,689.49 km) |
| Castro Daire to Boblingen | 986.55 mi (1,587.70 km) |
| Castro Daire to Bocholt | 1,021.88 mi (1,644.55 km) |
| Castro Daire to Bochum | 1,025.49 mi (1,650.36 km) |
| Castro Daire to Bockenem | 1,146.99 mi (1,845.90 km) |
| Castro Daire to Bockhorn | 1,138.27 mi (1,831.87 km) |
| Castro Daire to Bogen | 1,145.64 mi (1,843.73 km) |
| Castro Daire to Bohl-Iggelheim | 981.11 mi (1,578.94 km) |
| Castro Daire to Bohmte | 1,100.59 mi (1,771.23 km) |
| Castro Daire to Boizenburg | 1,221.94 mi (1,966.53 km) |
| Castro Daire to Bonen | 1,048.69 mi (1,687.71 km) |
| Castro Daire to Bonn | 989.32 mi (1,592.15 km) |
| Castro Daire to Bopfingen | 1,046.52 mi (1,684.21 km) |
