| Harrow on the Hill to Boppard | 357.17 mi (574.81 km) |
| Harrow on the Hill to Borgentreich | 411.27 mi (661.88 km) |
| Harrow on the Hill to Borgholzhausen | 370.21 mi (595.80 km) |
| Harrow on the Hill to Borken | 308.73 mi (496.85 km) |
| Harrow on the Hill to Borna | 554.03 mi (891.63 km) |
| Harrow on the Hill to Bornheim | 322.64 mi (519.24 km) |
| Harrow on the Hill to Bosel | 363.88 mi (585.61 km) |
| Harrow on the Hill to Bottrop | 311.65 mi (501.55 km) |
| Harrow on the Hill to Bovenden | 439.97 mi (708.06 km) |
| Harrow on the Hill to Brackenheim | 448.28 mi (721.44 km) |
| Harrow on the Hill to Brake | 390.51 mi (628.47 km) |
| Harrow on the Hill to Brakel | 407.87 mi (656.41 km) |
| Harrow on the Hill to Bramsche | 358.34 mi (576.69 km) |
| Harrow on the Hill to Brand | 287.07 mi (461.99 km) |
| Harrow on the Hill to Brand-Erbisdorf | 592.03 mi (952.78 km) |
