| Karlovo to Borsbeek | 1,120.99 mi (1,804.07 km) |
| Karlovo to Boussu | 1,128.84 mi (1,816.70 km) |
| Karlovo to Braine-l'Alleud | 1,111.47 mi (1,788.73 km) |
| Karlovo to Braine-le-Chateau | 1,115.80 mi (1,795.71 km) |
| Karlovo to Braine-le-Comte | 1,119.11 mi (1,801.03 km) |
| Karlovo to Brasschaat | 1,123.37 mi (1,807.89 km) |
| Karlovo to Brecht | 1,119.34 mi (1,801.40 km) |
| Karlovo to Bredene | 1,182.08 mi (1,902.37 km) |
| Karlovo to Bree | 1,075.77 mi (1,731.29 km) |
| Karlovo to Bruges | 1,171.45 mi (1,885.27 km) |
| Karlovo to Brussels | 1,116.60 mi (1,796.99 km) |
| Karlovo to Buggenhout | 1,126.81 mi (1,813.42 km) |
| Karlovo to Chapelle-lez-Herlaimont | 1,109.63 mi (1,785.77 km) |
| Karlovo to Charleroi | 1,101.80 mi (1,773.18 km) |
| Karlovo to Chatelet | 1,098.38 mi (1,767.67 km) |
