| Karlovac to Borsbeek | 642.53 mi (1,034.06 km) |
| Karlovac to Boussu | 641.33 mi (1,032.12 km) |
| Karlovac to Braine-l'Alleud | 627.58 mi (1,009.99 km) |
| Karlovac to Braine-le-Chateau | 631.64 mi (1,016.52 km) |
| Karlovac to Braine-le-Comte | 633.84 mi (1,020.06 km) |
| Karlovac to Brasschaat | 645.90 mi (1,039.47 km) |
| Karlovac to Brecht | 643.00 mi (1,034.81 km) |
| Karlovac to Bredene | 699.31 mi (1,125.43 km) |
| Karlovac to Bree | 600.89 mi (967.04 km) |
| Karlovac to Bruges | 689.14 mi (1,109.06 km) |
| Karlovac to Brussels | 634.21 mi (1,020.66 km) |
| Karlovac to Buggenhout | 645.41 mi (1,038.69 km) |
| Karlovac to Chapelle-lez-Herlaimont | 623.58 mi (1,003.56 km) |
| Karlovac to Charleroi | 615.57 mi (990.67 km) |
| Karlovac to Chatelet | 612.37 mi (985.51 km) |
