| Ostrow Mazowiecka to Bougival | 900.82 mi (1,449.73 km) |
| Ostrow Mazowiecka to Bouguenais | 1,108.64 mi (1,784.18 km) |
| Ostrow Mazowiecka to Boulogne-Billancourt | 897.51 mi (1,444.41 km) |
| Ostrow Mazowiecka to Boulogne-sur-Mer | 876.17 mi (1,410.05 km) |
| Ostrow Mazowiecka to Bourg-de-Peage | 930.64 mi (1,497.72 km) |
| Ostrow Mazowiecka to Bourg-en-Bresse | 872.76 mi (1,404.57 km) |
| Ostrow Mazowiecka to Bourg-la-Reine | 896.10 mi (1,442.14 km) |
| Ostrow Mazowiecka to Bourg-les-Valence | 940.44 mi (1,513.49 km) |
| Ostrow Mazowiecka to Bourges | 948.96 mi (1,527.21 km) |
| Ostrow Mazowiecka to Bourgoin-Jallieu | 897.79 mi (1,444.86 km) |
| Ostrow Mazowiecka to Bressuire | 1,074.05 mi (1,728.52 km) |
| Ostrow Mazowiecka to Brest | 1,189.45 mi (1,914.24 km) |
| Ostrow Mazowiecka to Bretigny-sur-Orge | 901.53 mi (1,450.88 km) |
| Ostrow Mazowiecka to Breuillet | 908.43 mi (1,461.98 km) |
| Ostrow Mazowiecka to Briancon | 880.11 mi (1,416.40 km) |
