| Gourock to Bois-Colombes | 569.81 mi (917.02 km) |
| Gourock to Bois-d'Arcy | 571.80 mi (920.22 km) |
| Gourock to Bois-Guillaume | 511.86 mi (823.76 km) |
| Gourock to Boissy-Saint-Leger | 585.23 mi (941.83 km) |
| Gourock to Bolbec | 492.94 mi (793.32 km) |
| Gourock to Bollene | 909.19 mi (1,463.19 km) |
| Gourock to Bondoufle | 590.72 mi (950.68 km) |
| Gourock to Bondues | 487.50 mi (784.55 km) |
| Gourock to Bondy | 575.47 mi (926.13 km) |
| Gourock to Bonneuil-sur-Marne | 583.29 mi (938.72 km) |
| Gourock to Bonneville | 836.38 mi (1,346.03 km) |
| Gourock to Bordeaux | 789.86 mi (1,271.16 km) |
| Gourock to Borgo | 1,122.12 mi (1,805.87 km) |
| Gourock to Bouc-Bel-Air | 974.81 mi (1,568.81 km) |
| Gourock to Boucau | 871.36 mi (1,402.33 km) |
