| Rennes to Bistrita | 1,215.12 mi (1,955.55 km) |
| Rennes to Blaj | 1,204.54 mi (1,938.53 km) |
| Rennes to Bocsa | 1,118.99 mi (1,800.84 km) |
| Rennes to Boldesti-Scaeni | 1,325.84 mi (2,133.74 km) |
| Rennes to Bolintin Vale | 1,327.01 mi (2,135.61 km) |
| Rennes to Borsa | 1,215.03 mi (1,955.40 km) |
| Rennes to Botosani | 1,305.16 mi (2,100.45 km) |
| Rennes to Brad | 1,153.60 mi (1,856.53 km) |
| Rennes to Bragadiru | 1,338.93 mi (2,154.81 km) |
| Rennes to Braila | 1,409.33 mi (2,268.10 km) |
| Rennes to Brasov | 1,292.98 mi (2,080.86 km) |
| Rennes to Breaza | 1,305.35 mi (2,100.76 km) |
| Rennes to Bucharest | 1,343.36 mi (2,161.93 km) |
| Rennes to Buftea | 1,332.92 mi (2,145.13 km) |
| Rennes to Buhusi | 1,323.02 mi (2,129.20 km) |
