| Kardzhali to Bistrita | 381.26 mi (613.58 km) |
| Kardzhali to Blaj | 320.90 mi (516.44 km) |
| Kardzhali to Bocsa | 315.82 mi (508.27 km) |
| Kardzhali to Boldesti-Scaeni | 235.90 mi (379.64 km) |
| Kardzhali to Bolintin Vale | 194.27 mi (312.65 km) |
| Kardzhali to Borsa | 416.36 mi (670.07 km) |
| Kardzhali to Botosani | 426.18 mi (685.88 km) |
| Kardzhali to Brad | 334.99 mi (539.11 km) |
| Kardzhali to Bragadiru | 190.48 mi (306.55 km) |
| Kardzhali to Braila | 281.77 mi (453.46 km) |
| Kardzhali to Brasov | 277.81 mi (447.09 km) |
| Kardzhali to Breaza | 244.85 mi (394.04 km) |
| Kardzhali to Bucharest | 195.82 mi (315.14 km) |
| Kardzhali to Buftea | 203.88 mi (328.12 km) |
| Kardzhali to Buhusi | 356.16 mi (573.19 km) |
