| Castro Daire to Borgosatollo | 966.02 mi (1,554.67 km) |
| Castro Daire to Borgosesia | 877.86 mi (1,412.78 km) |
| Castro Daire to Boscoreale | 1,168.69 mi (1,880.82 km) |
| Castro Daire to Boscotrecase | 1,167.67 mi (1,879.18 km) |
| Castro Daire to Botticino Sera | 966.58 mi (1,555.56 km) |
| Castro Daire to Bovalino Marina | 1,294.18 mi (2,082.79 km) |
| Castro Daire to Boves | 820.77 mi (1,320.90 km) |
| Castro Daire to Boville Ernica | 1,109.60 mi (1,785.72 km) |
| Castro Daire to Bovisio Masciago | 917.08 mi (1,475.89 km) |
| Castro Daire to Bovolone | 1,005.35 mi (1,617.95 km) |
| Castro Daire to Bra | 840.51 mi (1,352.67 km) |
| Castro Daire to Bracciano | 1,041.87 mi (1,676.73 km) |
| Castro Daire to Brandizzo | 847.77 mi (1,364.35 km) |
| Castro Daire to Breganze | 1,031.99 mi (1,660.83 km) |
| Castro Daire to Brembate | 935.51 mi (1,505.56 km) |
