| Gagnef to Bougival | 957.48 mi (1,540.92 km) |
| Gagnef to Bouguenais | 1,143.06 mi (1,839.57 km) |
| Gagnef to Boulogne-Billancourt | 957.20 mi (1,540.47 km) |
| Gagnef to Boulogne-sur-Mer | 857.32 mi (1,379.72 km) |
| Gagnef to Bourg-de-Peage | 1,150.93 mi (1,852.25 km) |
| Gagnef to Bourg-en-Bresse | 1,071.47 mi (1,724.37 km) |
| Gagnef to Bourg-la-Reine | 959.09 mi (1,543.51 km) |
| Gagnef to Bourg-les-Valence | 1,159.15 mi (1,865.47 km) |
| Gagnef to Bourges | 1,063.30 mi (1,711.21 km) |
| Gagnef to Bourgoin-Jallieu | 1,111.53 mi (1,788.84 km) |
| Gagnef to Bressuire | 1,137.87 mi (1,831.23 km) |
| Gagnef to Brest | 1,143.91 mi (1,840.95 km) |
| Gagnef to Bretigny-sur-Orge | 969.66 mi (1,560.52 km) |
| Gagnef to Breuillet | 975.22 mi (1,569.46 km) |
| Gagnef to Briancon | 1,138.94 mi (1,832.95 km) |
