| Portici to Bagnolet | 804.76 mi (1,295.14 km) |
| Portici to Bagnols-sur-Ceze | 546.01 mi (878.72 km) |
| Portici to Bailleul | 882.39 mi (1,420.07 km) |
| Portici to Balma | 684.07 mi (1,100.90 km) |
| Portici to Bar-le-Duc | 709.01 mi (1,141.04 km) |
| Portici to Barentin | 885.54 mi (1,425.13 km) |
| Portici to Basse-Goulaine | 898.76 mi (1,446.42 km) |
| Portici to Bastia | 283.54 mi (456.31 km) |
| Portici to Bayeux | 935.66 mi (1,505.80 km) |
| Portici to Bayonne | 829.73 mi (1,335.32 km) |
| Portici to Beaucaire | 536.33 mi (863.15 km) |
| Portici to Beauchamp | 819.10 mi (1,318.22 km) |
| Portici to Beaumont | 659.95 mi (1,062.08 km) |
| Portici to Beaumont-sur-Oise | 821.39 mi (1,321.91 km) |
| Portici to Beaune | 637.45 mi (1,025.87 km) |
