| Rome to Bougival | 694.56 mi (1,117.79 km) |
| Rome to Bouguenais | 783.14 mi (1,260.34 km) |
| Rome to Boulogne-Billancourt | 689.71 mi (1,109.98 km) |
| Rome to Boulogne-sur-Mer | 799.27 mi (1,286.30 km) |
| Rome to Bourg-de-Peage | 431.18 mi (693.92 km) |
| Rome to Bourg-en-Bresse | 467.15 mi (751.81 km) |
| Rome to Bourg-la-Reine | 684.65 mi (1,101.84 km) |
| Rome to Bourg-les-Valence | 435.09 mi (700.20 km) |
| Rome to Bourges | 612.25 mi (985.32 km) |
| Rome to Bourgoin-Jallieu | 440.87 mi (709.52 km) |
| Rome to Bressuire | 724.90 mi (1,166.61 km) |
| Rome to Brest | 938.22 mi (1,509.91 km) |
| Rome to Bretigny-sur-Orge | 677.53 mi (1,090.38 km) |
| Rome to Breuillet | 680.32 mi (1,094.87 km) |
| Rome to Briancon | 359.35 mi (578.32 km) |
