| Harrow to Brie-Comte-Robert | 238.82 mi (384.34 km) |
| Harrow to Brignais | 469.81 mi (756.09 km) |
| Harrow to Brignoles | 638.75 mi (1,027.97 km) |
| Harrow to Brive-la-Gaillarde | 452.20 mi (727.74 km) |
| Harrow to Bron | 469.48 mi (755.56 km) |
| Harrow to Bruay-sur-l'Escaut | 187.76 mi (302.17 km) |
| Harrow to Bruges | 463.14 mi (745.35 km) |
| Harrow to Brumath | 407.05 mi (655.08 km) |
| Harrow to Brunoy | 235.94 mi (379.72 km) |
| Harrow to Bruz | 253.68 mi (408.26 km) |
| Harrow to Bry-sur-Marne | 227.98 mi (366.90 km) |
| Harrow to Bully-les-Mines | 155.03 mi (249.50 km) |
| Harrow to Bures-sur-Yvette | 228.26 mi (367.35 km) |
| Harrow to Bussy-Saint-Georges | 232.33 mi (373.91 km) |
| Harrow to Buxerolles | 345.94 mi (556.73 km) |
