| Mariehamn to Bierun Stary | 692.43 mi (1,114.36 km) |
| Mariehamn to Bilgoraj | 668.80 mi (1,076.34 km) |
| Mariehamn to Biskupiec | 432.42 mi (695.91 km) |
| Mariehamn to Blachownia | 644.82 mi (1,037.73 km) |
| Mariehamn to Blonie | 546.46 mi (879.45 km) |
| Mariehamn to Bochnia | 699.27 mi (1,125.37 km) |
| Mariehamn to Bogatynia | 663.90 mi (1,068.44 km) |
| Mariehamn to Boguszow-Gorce | 661.00 mi (1,063.78 km) |
| Mariehamn to Boleslawiec | 633.24 mi (1,019.09 km) |
| Mariehamn to Braniewo | 395.00 mi (635.70 km) |
| Mariehamn to Brodnica | 473.06 mi (761.31 km) |
| Mariehamn to Brwinow | 550.68 mi (886.24 km) |
| Mariehamn to Brzeg | 645.02 mi (1,038.05 km) |
| Mariehamn to Brzeg Dolny | 622.55 mi (1,001.90 km) |
| Mariehamn to Brzesko | 700.66 mi (1,127.60 km) |
