| Dorchester to Bougival | 240.79 mi (387.51 km) |
| Dorchester to Bouguenais | 247.22 mi (397.87 km) |
| Dorchester to Boulogne-Billancourt | 245.77 mi (395.53 km) |
| Dorchester to Boulogne-sur-Mer | 177.20 mi (285.17 km) |
| Dorchester to Bourg-de-Peage | 523.17 mi (841.97 km) |
| Dorchester to Bourg-en-Bresse | 469.09 mi (754.92 km) |
| Dorchester to Bourg-la-Reine | 250.71 mi (403.49 km) |
| Dorchester to Bourg-les-Valence | 523.39 mi (842.31 km) |
| Dorchester to Bourges | 333.22 mi (536.26 km) |
| Dorchester to Bourgoin-Jallieu | 501.42 mi (806.95 km) |
| Dorchester to Bressuire | 282.05 mi (453.91 km) |
| Dorchester to Brest | 185.15 mi (297.96 km) |
| Dorchester to Bretigny-sur-Orge | 257.06 mi (413.70 km) |
| Dorchester to Breuillet | 254.02 mi (408.80 km) |
| Dorchester to Briancon | 581.37 mi (935.63 km) |
