| Acton to Bicaz | 1,224.22 mi (1,970.18 km) |
| Acton to Bistrita | 1,149.67 mi (1,850.22 km) |
| Acton to Blaj | 1,153.64 mi (1,856.61 km) |
| Acton to Bocsa | 1,087.77 mi (1,750.59 km) |
| Acton to Boldesti-Scaeni | 1,281.33 mi (2,062.11 km) |
| Acton to Bolintin Vale | 1,290.37 mi (2,076.65 km) |
| Acton to Borsa | 1,142.23 mi (1,838.23 km) |
| Acton to Botosani | 1,225.93 mi (1,972.94 km) |
| Acton to Brad | 1,107.48 mi (1,782.31 km) |
| Acton to Bragadiru | 1,302.29 mi (2,095.84 km) |
| Acton to Braila | 1,355.16 mi (2,180.92 km) |
| Acton to Brasov | 1,242.39 mi (1,999.44 km) |
| Acton to Breaza | 1,260.37 mi (2,028.37 km) |
| Acton to Bucharest | 1,305.49 mi (2,100.99 km) |
| Acton to Buftea | 1,294.08 mi (2,082.62 km) |
