| Gourock to Bougival | 570.21 mi (917.66 km) |
| Gourock to Bouguenais | 621.55 mi (1,000.29 km) |
| Gourock to Boulogne-Billancourt | 574.21 mi (924.10 km) |
| Gourock to Boulogne-sur-Mer | 447.77 mi (720.61 km) |
| Gourock to Bourg-de-Peage | 868.09 mi (1,397.05 km) |
| Gourock to Bourg-en-Bresse | 800.59 mi (1,288.43 km) |
| Gourock to Bourg-la-Reine | 579.19 mi (932.12 km) |
| Gourock to Bourg-les-Valence | 870.40 mi (1,400.77 km) |
| Gourock to Bourges | 685.97 mi (1,103.95 km) |
| Gourock to Bourgoin-Jallieu | 839.25 mi (1,350.65 km) |
| Gourock to Bressuire | 656.44 mi (1,056.44 km) |
| Gourock to Brest | 522.79 mi (841.35 km) |
| Gourock to Bretigny-sur-Orge | 589.24 mi (948.28 km) |
| Gourock to Breuillet | 589.16 mi (948.16 km) |
| Gourock to Briancon | 912.75 mi (1,468.93 km) |
