| Castelfidardo to Bistrita | 588.94 mi (947.81 km) |
| Castelfidardo to Blaj | 541.07 mi (870.78 km) |
| Castelfidardo to Bocsa | 423.75 mi (681.97 km) |
| Castelfidardo to Boldesti-Scaeni | 626.62 mi (1,008.45 km) |
| Castelfidardo to Bolintin Vale | 610.57 mi (982.62 km) |
| Castelfidardo to Borsa | 609.99 mi (981.69 km) |
| Castelfidardo to Botosani | 698.81 mi (1,124.63 km) |
| Castelfidardo to Brad | 488.83 mi (786.69 km) |
| Castelfidardo to Bragadiru | 621.15 mi (999.65 km) |
| Castelfidardo to Braila | 721.65 mi (1,161.39 km) |
| Castelfidardo to Brasov | 612.70 mi (986.04 km) |
| Castelfidardo to Breaza | 609.97 mi (981.65 km) |
| Castelfidardo to Bucharest | 627.63 mi (1,010.07 km) |
| Castelfidardo to Buftea | 620.42 mi (998.47 km) |
| Castelfidardo to Buhusi | 679.02 mi (1,092.78 km) |
