| Kastamonu to Borsbeek | 1,540.74 mi (2,479.59 km) |
| Kastamonu to Boussu | 1,557.71 mi (2,506.90 km) |
| Kastamonu to Braine-l'Alleud | 1,536.81 mi (2,473.25 km) |
| Kastamonu to Braine-le-Chateau | 1,541.33 mi (2,480.52 km) |
| Kastamonu to Braine-le-Comte | 1,545.73 mi (2,487.61 km) |
| Kastamonu to Brasschaat | 1,542.13 mi (2,481.81 km) |
| Kastamonu to Brecht | 1,537.14 mi (2,473.79 km) |
| Kastamonu to Bredene | 1,604.66 mi (2,582.45 km) |
| Kastamonu to Bree | 1,493.55 mi (2,403.63 km) |
| Kastamonu to Bruges | 1,593.80 mi (2,564.97 km) |
| Kastamonu to Brussels | 1,540.29 mi (2,478.86 km) |
| Kastamonu to Buggenhout | 1,549.26 mi (2,493.30 km) |
| Kastamonu to Chapelle-lez-Herlaimont | 1,537.27 mi (2,474.00 km) |
| Kastamonu to Charleroi | 1,529.82 mi (2,462.01 km) |
| Kastamonu to Chatelet | 1,526.24 mi (2,456.24 km) |
