| Monte Porzio Catone to Bougival | 706.61 mi (1,137.18 km) |
| Monte Porzio Catone to Bouguenais | 796.12 mi (1,281.24 km) |
| Monte Porzio Catone to Boulogne-Billancourt | 701.74 mi (1,129.35 km) |
| Monte Porzio Catone to Boulogne-sur-Mer | 810.69 mi (1,304.69 km) |
| Monte Porzio Catone to Bourg-de-Peage | 444.16 mi (714.81 km) |
| Monte Porzio Catone to Bourg-en-Bresse | 479.64 mi (771.90 km) |
| Monte Porzio Catone to Bourg-la-Reine | 696.69 mi (1,121.21 km) |
| Monte Porzio Catone to Bourg-les-Valence | 448.11 mi (721.16 km) |
| Monte Porzio Catone to Bourges | 624.92 mi (1,005.71 km) |
| Monte Porzio Catone to Bourgoin-Jallieu | 453.63 mi (730.04 km) |
| Monte Porzio Catone to Bressuire | 737.89 mi (1,187.52 km) |
| Monte Porzio Catone to Brest | 951.13 mi (1,530.70 km) |
| Monte Porzio Catone to Bretigny-sur-Orge | 689.64 mi (1,109.87 km) |
| Monte Porzio Catone to Breuillet | 692.48 mi (1,114.44 km) |
| Monte Porzio Catone to Briancon | 372.14 mi (598.90 km) |
