| Kastamonu to Belvedere Marittimo | 947.10 mi (1,524.21 km) |
| Kastamonu to Benevento | 984.73 mi (1,584.77 km) |
| Kastamonu to Bergamo | 1,238.62 mi (1,993.36 km) |
| Kastamonu to Bernalda | 893.73 mi (1,438.32 km) |
| Kastamonu to Bertinoro | 1,111.11 mi (1,788.15 km) |
| Kastamonu to Besana in Brianza | 1,257.23 mi (2,023.32 km) |
| Kastamonu to Besozzo | 1,287.73 mi (2,072.40 km) |
| Kastamonu to Biancavilla | 1,038.00 mi (1,670.49 km) |
| Kastamonu to Biassono | 1,257.64 mi (2,023.98 km) |
| Kastamonu to Bibbiano | 1,194.89 mi (1,923.00 km) |
| Kastamonu to Bibbiena | 1,126.05 mi (1,812.20 km) |
| Kastamonu to Biella | 1,315.17 mi (2,116.56 km) |
| Kastamonu to Bisceglie | 894.92 mi (1,440.24 km) |
| Kastamonu to Bisignano | 927.11 mi (1,492.04 km) |
| Kastamonu to Bitetto | 883.98 mi (1,422.62 km) |
