| Harrow Weald to Bois-Colombes | 218.41 mi (351.50 km) |
| Harrow Weald to Bois-d'Arcy | 220.17 mi (354.34 km) |
| Harrow Weald to Bois-Guillaume | 160.75 mi (258.69 km) |
| Harrow Weald to Boissy-Saint-Leger | 233.98 mi (376.55 km) |
| Harrow Weald to Bolbec | 144.82 mi (233.07 km) |
| Harrow Weald to Bollene | 557.80 mi (897.69 km) |
| Harrow Weald to Bondoufle | 239.17 mi (384.91 km) |
| Harrow Weald to Bondues | 161.27 mi (259.53 km) |
| Harrow Weald to Bondy | 224.44 mi (361.19 km) |
| Harrow Weald to Bonneuil-sur-Marne | 232.04 mi (373.44 km) |
| Harrow Weald to Bonneville | 489.12 mi (787.17 km) |
| Harrow Weald to Bordeaux | 467.48 mi (752.33 km) |
| Harrow Weald to Borgo | 774.55 mi (1,246.52 km) |
| Harrow Weald to Bouc-Bel-Air | 623.31 mi (1,003.12 km) |
| Harrow Weald to Boucau | 560.84 mi (902.59 km) |
