| Castellanza to Beyne-Heusay | 376.50 mi (605.92 km) |
| Castellanza to Bierbeek | 407.41 mi (655.66 km) |
| Castellanza to Bilzen | 394.63 mi (635.10 km) |
| Castellanza to Binche | 396.17 mi (637.58 km) |
| Castellanza to Bissegem | 444.17 mi (714.83 km) |
| Castellanza to Blankenberge | 473.40 mi (761.86 km) |
| Castellanza to Blegny | 378.15 mi (608.57 km) |
| Castellanza to Bocholt | 412.86 mi (664.44 km) |
| Castellanza to Boechout | 432.52 mi (696.08 km) |
| Castellanza to Bonheiden | 424.44 mi (683.08 km) |
| Castellanza to Boom | 431.07 mi (693.74 km) |
| Castellanza to Boortmeerbeek | 420.73 mi (677.09 km) |
| Castellanza to Borgerhout | 437.14 mi (703.51 km) |
| Castellanza to Borgloon | 393.82 mi (633.79 km) |
| Castellanza to Bornem | 435.03 mi (700.12 km) |
