| Ronciglione to Bougival | 665.17 mi (1,070.49 km) |
| Ronciglione to Bouguenais | 757.00 mi (1,218.28 km) |
| Ronciglione to Boulogne-Billancourt | 660.30 mi (1,062.64 km) |
| Ronciglione to Boulogne-sur-Mer | 769.11 mi (1,237.77 km) |
| Ronciglione to Bourg-de-Peage | 405.13 mi (652.00 km) |
| Ronciglione to Bourg-en-Bresse | 438.76 mi (706.11 km) |
| Ronciglione to Bourg-la-Reine | 655.25 mi (1,054.52 km) |
| Ronciglione to Bourg-les-Valence | 409.38 mi (658.84 km) |
| Ronciglione to Bourges | 584.43 mi (940.55 km) |
| Ronciglione to Bourgoin-Jallieu | 413.46 mi (665.41 km) |
| Ronciglione to Bressuire | 698.79 mi (1,124.59 km) |
| Ronciglione to Brest | 911.56 mi (1,467.02 km) |
| Ronciglione to Bretigny-sur-Orge | 648.25 mi (1,043.25 km) |
| Ronciglione to Breuillet | 651.13 mi (1,047.89 km) |
| Ronciglione to Briancon | 332.13 mi (534.52 km) |
