| Asker to Borsbeek | 639.76 mi (1,029.59 km) |
| Asker to Boussu | 699.65 mi (1,125.98 km) |
| Asker to Braine-l'Alleud | 675.33 mi (1,086.83 km) |
| Asker to Braine-le-Chateau | 676.60 mi (1,088.88 km) |
| Asker to Braine-le-Comte | 683.92 mi (1,100.66 km) |
| Asker to Brasschaat | 633.59 mi (1,019.67 km) |
| Asker to Brecht | 627.86 mi (1,010.44 km) |
| Asker to Bredene | 661.02 mi (1,063.81 km) |
| Asker to Bree | 630.03 mi (1,013.93 km) |
| Asker to Bruges | 658.43 mi (1,059.64 km) |
| Asker to Brussels | 664.70 mi (1,069.73 km) |
| Asker to Buggenhout | 656.84 mi (1,057.08 km) |
| Asker to Chapelle-lez-Herlaimont | 690.58 mi (1,111.38 km) |
| Asker to Charleroi | 692.94 mi (1,115.18 km) |
| Asker to Chatelet | 691.84 mi (1,113.41 km) |
