| Castagneto Carducci to Bougival | 564.88 mi (909.08 km) |
| Castagneto Carducci to Bouguenais | 655.68 mi (1,055.21 km) |
| Castagneto Carducci to Boulogne-Billancourt | 560.05 mi (901.31 km) |
| Castagneto Carducci to Boulogne-sur-Mer | 671.64 mi (1,080.90 km) |
| Castagneto Carducci to Bourg-de-Peage | 304.12 mi (489.43 km) |
| Castagneto Carducci to Bourg-en-Bresse | 337.06 mi (542.45 km) |
| Castagneto Carducci to Bourg-la-Reine | 554.98 mi (893.15 km) |
| Castagneto Carducci to Bourg-les-Valence | 308.74 mi (496.86 km) |
| Castagneto Carducci to Bourges | 482.51 mi (776.53 km) |
| Castagneto Carducci to Bourgoin-Jallieu | 311.56 mi (501.41 km) |
| Castagneto Carducci to Bressuire | 597.50 mi (961.59 km) |
| Castagneto Carducci to Brest | 809.88 mi (1,303.38 km) |
| Castagneto Carducci to Bretigny-sur-Orge | 547.71 mi (881.45 km) |
| Castagneto Carducci to Breuillet | 550.42 mi (885.81 km) |
| Castagneto Carducci to Briancon | 230.32 mi (370.67 km) |
