| Marlborough to Bicaz | 4,481.28 mi (7,211.92 km) |
| Marlborough to Bistrita | 4,411.35 mi (7,099.38 km) |
| Marlborough to Blaj | 4,426.65 mi (7,124.01 km) |
| Marlborough to Bocsa | 4,370.82 mi (7,034.15 km) |
| Marlborough to Boldesti-Scaeni | 4,555.89 mi (7,331.99 km) |
| Marlborough to Bolintin Vale | 4,569.20 mi (7,353.42 km) |
| Marlborough to Borsa | 4,396.92 mi (7,076.16 km) |
| Marlborough to Botosani | 4,469.18 mi (7,192.45 km) |
| Marlborough to Brad | 4,384.28 mi (7,055.82 km) |
| Marlborough to Bragadiru | 4,580.97 mi (7,372.37 km) |
| Marlborough to Braila | 4,620.82 mi (7,436.49 km) |
| Marlborough to Brasov | 4,513.62 mi (7,263.97 km) |
| Marlborough to Breaza | 4,535.01 mi (7,298.39 km) |
| Marlborough to Bucharest | 4,583.51 mi (7,376.44 km) |
| Marlborough to Buftea | 4,571.74 mi (7,357.51 km) |
