| Irun to Borsbeek | 617.18 mi (993.25 km) |
| Irun to Boussu | 556.30 mi (895.27 km) |
| Irun to Braine-l'Alleud | 584.02 mi (939.88 km) |
| Irun to Braine-le-Chateau | 581.75 mi (936.24 km) |
| Irun to Braine-le-Comte | 573.79 mi (923.43 km) |
| Irun to Brasschaat | 622.84 mi (1,002.37 km) |
| Irun to Brecht | 629.40 mi (1,012.92 km) |
| Irun to Bredene | 589.16 mi (948.17 km) |
| Irun to Bree | 639.37 mi (1,028.97 km) |
| Irun to Bruges | 592.10 mi (952.89 km) |
| Irun to Brussels | 593.34 mi (954.88 km) |
| Irun to Buggenhout | 599.03 mi (964.05 km) |
| Irun to Chapelle-lez-Herlaimont | 569.45 mi (916.44 km) |
| Irun to Charleroi | 569.17 mi (915.99 km) |
| Irun to Chatelet | 571.20 mi (919.26 km) |
