| Opoczno to Boppard | 559.27 mi (900.06 km) |
| Opoczno to Borgentreich | 474.74 mi (764.01 km) |
| Opoczno to Borgholzhausen | 514.70 mi (828.33 km) |
| Opoczno to Borken | 575.93 mi (926.88 km) |
| Opoczno to Borna | 337.10 mi (542.52 km) |
| Opoczno to Bornheim | 577.45 mi (929.32 km) |
| Opoczno to Bosel | 533.63 mi (858.79 km) |
| Opoczno to Bottrop | 574.72 mi (924.92 km) |
| Opoczno to Bovenden | 445.83 mi (717.50 km) |
| Opoczno to Brackenheim | 520.02 mi (836.89 km) |
| Opoczno to Brake | 515.44 mi (829.53 km) |
| Opoczno to Brakel | 477.21 mi (767.99 km) |
| Opoczno to Bramsche | 528.75 mi (850.94 km) |
| Opoczno to Brand | 613.79 mi (987.80 km) |
| Opoczno to Brand-Erbisdorf | 303.96 mi (489.18 km) |
