| Borgo San Lorenzo to Bougival | 555.46 mi (893.93 km) |
| Borgo San Lorenzo to Bouguenais | 666.46 mi (1,072.57 km) |
| Borgo San Lorenzo to Boulogne-Billancourt | 550.49 mi (885.93 km) |
| Borgo San Lorenzo to Boulogne-sur-Mer | 653.48 mi (1,051.68 km) |
| Borgo San Lorenzo to Bourg-de-Peage | 320.97 mi (516.55 km) |
| Borgo San Lorenzo to Bourg-en-Bresse | 338.17 mi (544.24 km) |
| Borgo San Lorenzo to Bourg-la-Reine | 545.53 mi (877.95 km) |
| Borgo San Lorenzo to Bourg-les-Valence | 327.26 mi (526.67 km) |
| Borgo San Lorenzo to Bourges | 485.60 mi (781.50 km) |
| Borgo San Lorenzo to Bourgoin-Jallieu | 320.21 mi (515.33 km) |
| Borgo San Lorenzo to Bressuire | 608.90 mi (979.94 km) |
| Borgo San Lorenzo to Brest | 817.20 mi (1,315.16 km) |
| Borgo San Lorenzo to Bretigny-sur-Orge | 539.42 mi (868.11 km) |
| Borgo San Lorenzo to Breuillet | 542.88 mi (873.68 km) |
| Borgo San Lorenzo to Briancon | 243.21 mi (391.41 km) |
