| Karlovo to Borgosesia | 844.94 mi (1,359.80 km) |
| Karlovo to Boscoreale | 547.72 mi (881.47 km) |
| Karlovo to Boscotrecase | 548.21 mi (882.26 km) |
| Karlovo to Botticino Sera | 749.12 mi (1,205.60 km) |
| Karlovo to Bovalino Marina | 550.10 mi (885.30 km) |
| Karlovo to Boves | 871.26 mi (1,402.15 km) |
| Karlovo to Boville Ernica | 584.54 mi (940.73 km) |
| Karlovo to Bovisio Masciago | 801.73 mi (1,290.26 km) |
| Karlovo to Bovolone | 702.69 mi (1,130.87 km) |
| Karlovo to Bra | 857.65 mi (1,380.25 km) |
| Karlovo to Bracciano | 644.88 mi (1,037.84 km) |
| Karlovo to Brandizzo | 860.90 mi (1,385.48 km) |
| Karlovo to Breganze | 688.35 mi (1,107.79 km) |
| Karlovo to Brembate | 782.47 mi (1,259.27 km) |
| Karlovo to Brescia | 749.81 mi (1,206.70 km) |
