| Karlovy Vary to Bistrita | 571.20 mi (919.25 km) |
| Karlovy Vary to Blaj | 579.75 mi (933.01 km) |
| Karlovy Vary to Bocsa | 529.29 mi (851.82 km) |
| Karlovy Vary to Boldesti-Scaeni | 708.78 mi (1,140.67 km) |
| Karlovy Vary to Bolintin Vale | 722.08 mi (1,162.07 km) |
| Karlovy Vary to Borsa | 563.16 mi (906.32 km) |
| Karlovy Vary to Botosani | 647.55 mi (1,042.13 km) |
| Karlovy Vary to Brad | 536.98 mi (864.19 km) |
| Karlovy Vary to Bragadiru | 733.79 mi (1,180.93 km) |
| Karlovy Vary to Braila | 778.23 mi (1,252.44 km) |
| Karlovy Vary to Brasov | 667.55 mi (1,074.32 km) |
| Karlovy Vary to Breaza | 687.86 mi (1,107.00 km) |
| Karlovy Vary to Bucharest | 736.20 mi (1,184.80 km) |
| Karlovy Vary to Buftea | 724.40 mi (1,165.81 km) |
| Karlovy Vary to Buhusi | 677.30 mi (1,090.01 km) |
