| Ostrow Wielkopolski to Bitonto | 729.72 mi (1,174.36 km) |
| Ostrow Wielkopolski to Bitritto | 733.83 mi (1,180.98 km) |
| Ostrow Wielkopolski to Bollate | 578.55 mi (931.09 km) |
| Ostrow Wielkopolski to Bologna | 577.19 mi (928.90 km) |
| Ostrow Wielkopolski to Bolzano | 460.30 mi (740.78 km) |
| Ostrow Wielkopolski to Bomporto | 570.38 mi (917.94 km) |
| Ostrow Wielkopolski to Bonate di Sopra | 557.56 mi (897.31 km) |
| Ostrow Wielkopolski to Bondeno | 551.96 mi (888.29 km) |
| Ostrow Wielkopolski to Bordighera | 718.37 mi (1,156.11 km) |
| Ostrow Wielkopolski to Borgaro Torinese | 646.31 mi (1,040.13 km) |
| Ostrow Wielkopolski to Borgo a Buggiano | 628.72 mi (1,011.82 km) |
| Ostrow Wielkopolski to Borgo San Dalmazzo | 694.28 mi (1,117.33 km) |
| Ostrow Wielkopolski to Borgo San Lorenzo | 609.48 mi (980.87 km) |
| Ostrow Wielkopolski to Borgomanero | 591.54 mi (951.99 km) |
| Ostrow Wielkopolski to Borgoricco | 500.67 mi (805.75 km) |
