| Bethesda to Bicaz | 4,852.99 mi (7,810.13 km) |
| Bethesda to Bistrita | 4,783.31 mi (7,697.99 km) |
| Bethesda to Blaj | 4,799.09 mi (7,723.39 km) |
| Bethesda to Bocsa | 4,743.71 mi (7,634.26 km) |
| Bethesda to Boldesti-Scaeni | 4,928.34 mi (7,931.40 km) |
| Bethesda to Bolintin Vale | 4,941.86 mi (7,953.16 km) |
| Bethesda to Borsa | 4,768.61 mi (7,674.33 km) |
| Bethesda to Botosani | 4,840.29 mi (7,789.70 km) |
| Bethesda to Brad | 4,756.90 mi (7,655.49 km) |
| Bethesda to Bragadiru | 4,953.62 mi (7,972.09 km) |
| Bethesda to Braila | 4,992.82 mi (8,035.16 km) |
| Bethesda to Brasov | 4,885.94 mi (7,863.15 km) |
| Bethesda to Breaza | 4,907.48 mi (7,897.82 km) |
| Bethesda to Bucharest | 4,956.12 mi (7,976.11 km) |
| Bethesda to Buftea | 4,944.34 mi (7,957.15 km) |
