| Harrow to Bois-Colombes | 217.40 mi (349.87 km) |
| Harrow to Bois-d'Arcy | 219.10 mi (352.61 km) |
| Harrow to Bois-Guillaume | 159.59 mi (256.84 km) |
| Harrow to Boissy-Saint-Leger | 232.98 mi (374.95 km) |
| Harrow to Bolbec | 143.54 mi (231.01 km) |
| Harrow to Bollene | 556.68 mi (895.89 km) |
| Harrow to Bondoufle | 238.13 mi (383.24 km) |
| Harrow to Bondues | 161.05 mi (259.19 km) |
| Harrow to Bondy | 223.46 mi (359.63 km) |
| Harrow to Bonneuil-sur-Marne | 231.05 mi (371.84 km) |
| Harrow to Bonneville | 488.28 mi (785.81 km) |
| Harrow to Bordeaux | 466.06 mi (750.05 km) |
| Harrow to Borgo | 773.68 mi (1,245.11 km) |
| Harrow to Bouc-Bel-Air | 622.21 mi (1,001.35 km) |
| Harrow to Boucau | 559.41 mi (900.28 km) |
