| Boulogne-Billancourt to Bistrita | 1,032.35 mi (1,661.41 km) |
| Boulogne-Billancourt to Blaj | 1,024.50 mi (1,648.77 km) |
| Boulogne-Billancourt to Bocsa | 943.44 mi (1,518.32 km) |
| Boulogne-Billancourt to Boldesti-Scaeni | 1,147.66 mi (1,846.99 km) |
| Boulogne-Billancourt to Bolintin Vale | 1,150.84 mi (1,852.09 km) |
| Boulogne-Billancourt to Borsa | 1,031.15 mi (1,659.48 km) |
| Boulogne-Billancourt to Botosani | 1,120.65 mi (1,803.51 km) |
| Boulogne-Billancourt to Brad | 974.42 mi (1,568.17 km) |
| Boulogne-Billancourt to Bragadiru | 1,162.80 mi (1,871.35 km) |
| Boulogne-Billancourt to Braila | 1,229.20 mi (1,978.21 km) |
| Boulogne-Billancourt to Brasov | 1,113.30 mi (1,791.68 km) |
| Boulogne-Billancourt to Breaza | 1,126.99 mi (1,813.72 km) |
| Boulogne-Billancourt to Bucharest | 1,166.92 mi (1,877.97 km) |
| Boulogne-Billancourt to Buftea | 1,156.19 mi (1,860.70 km) |
| Boulogne-Billancourt to Buhusi | 1,140.30 mi (1,835.14 km) |
