| Harrow to Beausoleil | 650.57 mi (1,046.99 km) |
| Harrow to Beauvais | 183.41 mi (295.16 km) |
| Harrow to Begles | 468.20 mi (753.49 km) |
| Harrow to Belfort | 421.61 mi (678.52 km) |
| Harrow to Bellegarde-sur-Valserine | 470.73 mi (757.56 km) |
| Harrow to Bellerive-sur-Allier | 414.31 mi (666.77 km) |
| Harrow to Bellevue | 222.91 mi (358.73 km) |
| Harrow to Belley | 487.24 mi (784.13 km) |
| Harrow to Berck-sur-Mer | 117.06 mi (188.39 km) |
| Harrow to Bergerac | 466.79 mi (751.23 km) |
| Harrow to Bernay | 177.35 mi (285.41 km) |
| Harrow to Berre-l'Etang | 616.02 mi (991.39 km) |
| Harrow to Besancon | 414.40 mi (666.91 km) |
| Harrow to Bethune | 148.73 mi (239.36 km) |
| Harrow to Betton | 241.98 mi (389.43 km) |
