| Mariehamn to Bistrita | 914.71 mi (1,472.09 km) |
| Mariehamn to Blaj | 975.71 mi (1,570.26 km) |
| Mariehamn to Bocsa | 1,020.04 mi (1,641.60 km) |
| Mariehamn to Boldesti-Scaeni | 1,071.16 mi (1,723.86 km) |
| Mariehamn to Bolintin Vale | 1,108.14 mi (1,783.37 km) |
| Mariehamn to Borsa | 880.60 mi (1,417.20 km) |
| Mariehamn to Botosani | 895.21 mi (1,440.70 km) |
| Mariehamn to Brad | 972.29 mi (1,564.75 km) |
| Mariehamn to Bragadiru | 1,115.32 mi (1,794.93 km) |
| Mariehamn to Braila | 1,076.55 mi (1,732.54 km) |
| Mariehamn to Brasov | 1,024.09 mi (1,648.11 km) |
| Mariehamn to Breaza | 1,057.03 mi (1,701.13 km) |
| Mariehamn to Bucharest | 1,112.35 mi (1,790.16 km) |
| Mariehamn to Buftea | 1,101.57 mi (1,772.81 km) |
| Mariehamn to Buhusi | 964.73 mi (1,552.59 km) |
