| Opmeer to Bistrita | 947.10 mi (1,524.22 km) |
| Opmeer to Blaj | 959.91 mi (1,544.82 km) |
| Opmeer to Bocsa | 908.99 mi (1,462.87 km) |
| Opmeer to Boldesti-Scaeni | 1,089.13 mi (1,752.79 km) |
| Opmeer to Bolintin Vale | 1,103.08 mi (1,775.23 km) |
| Opmeer to Borsa | 935.57 mi (1,505.65 km) |
| Opmeer to Botosani | 1,014.52 mi (1,632.71 km) |
| Opmeer to Brad | 917.93 mi (1,477.26 km) |
| Opmeer to Bragadiru | 1,114.77 mi (1,794.06 km) |
| Opmeer to Braila | 1,155.86 mi (1,860.18 km) |
| Opmeer to Brasov | 1,047.09 mi (1,685.12 km) |
| Opmeer to Breaza | 1,068.25 mi (1,719.19 km) |
| Opmeer to Bucharest | 1,117.11 mi (1,797.82 km) |
| Opmeer to Buftea | 1,105.28 mi (1,778.78 km) |
| Opmeer to Buhusi | 1,051.08 mi (1,691.55 km) |
