| Portici to Brie-Comte-Robert | 790.24 mi (1,271.77 km) |
| Portici to Brignais | 586.96 mi (944.62 km) |
| Portici to Brignoles | 460.18 mi (740.59 km) |
| Portici to Brive-la-Gaillarde | 712.33 mi (1,146.39 km) |
| Portici to Bron | 582.81 mi (937.94 km) |
| Portici to Bruay-sur-l'Escaut | 841.16 mi (1,353.71 km) |
| Portici to Bruges | 806.34 mi (1,297.67 km) |
| Portici to Brumath | 635.58 mi (1,022.87 km) |
| Portici to Brunoy | 794.26 mi (1,278.23 km) |
| Portici to Bruz | 934.20 mi (1,503.45 km) |
| Portici to Bry-sur-Marne | 799.87 mi (1,287.27 km) |
| Portici to Bully-les-Mines | 867.99 mi (1,396.89 km) |
| Portici to Bures-sur-Yvette | 806.47 mi (1,297.89 km) |
| Portici to Bussy-Saint-Georges | 793.76 mi (1,277.43 km) |
| Portici to Buxerolles | 803.13 mi (1,292.51 km) |
