| Concarneau to Bougival | 286.27 mi (460.71 km) |
| Concarneau to Bouguenais | 117.53 mi (189.14 km) |
| Concarneau to Boulogne-Billancourt | 290.40 mi (467.35 km) |
| Concarneau to Boulogne-sur-Mer | 317.60 mi (511.13 km) |
| Concarneau to Bourg-de-Peage | 469.39 mi (755.42 km) |
| Concarneau to Bourg-en-Bresse | 445.61 mi (717.14 km) |
| Concarneau to Bourg-la-Reine | 293.02 mi (471.58 km) |
| Concarneau to Bourg-les-Valence | 465.71 mi (749.48 km) |
| Concarneau to Bourges | 299.83 mi (482.54 km) |
| Concarneau to Bourgoin-Jallieu | 462.83 mi (744.86 km) |
| Concarneau to Bressuire | 175.75 mi (282.84 km) |
| Concarneau to Brest | 44.25 mi (71.22 km) |
| Concarneau to Bretigny-sur-Orge | 290.82 mi (468.03 km) |
| Concarneau to Breuillet | 284.32 mi (457.56 km) |
| Concarneau to Briancon | 542.93 mi (873.76 km) |
