| Harrow to Bagnolet | 223.81 mi (360.18 km) |
| Harrow to Bagnols-sur-Ceze | 561.72 mi (904.00 km) |
| Harrow to Bailleul | 145.70 mi (234.48 km) |
| Harrow to Balma | 557.52 mi (897.24 km) |
| Harrow to Bar-le-Duc | 311.73 mi (501.68 km) |
| Harrow to Barentin | 152.00 mi (244.62 km) |
| Harrow to Basse-Goulaine | 305.98 mi (492.42 km) |
| Harrow to Bastia | 765.81 mi (1,232.46 km) |
| Harrow to Bayeux | 160.03 mi (257.55 km) |
| Harrow to Bayonne | 561.69 mi (903.95 km) |
| Harrow to Beaucaire | 584.92 mi (941.34 km) |
| Harrow to Beauchamp | 209.86 mi (337.74 km) |
| Harrow to Beaumont | 432.14 mi (695.47 km) |
| Harrow to Beaumont-sur-Oise | 204.70 mi (329.43 km) |
| Harrow to Beaune | 391.95 mi (630.79 km) |
