| Acton to Barberino di Mugello | 743.50 mi (1,196.55 km) |
| Acton to Barcellona-Pozzo di Gotto | 1,190.08 mi (1,915.25 km) |
| Acton to Bareggio | 594.22 mi (956.30 km) |
| Acton to Barga | 714.99 mi (1,150.66 km) |
| Acton to Bari | 1,083.25 mi (1,743.33 km) |
| Acton to Barletta | 1,053.00 mi (1,694.64 km) |
| Acton to Baronissi | 1,031.57 mi (1,660.15 km) |
| Acton to Barrafranca | 1,205.64 mi (1,940.30 km) |
| Acton to Bassano del Grappa | 675.44 mi (1,087.02 km) |
| Acton to Battipaglia | 1,045.53 mi (1,682.62 km) |
| Acton to Beinasco | 575.51 mi (926.19 km) |
| Acton to Bellinzago Novarese | 576.92 mi (928.47 km) |
| Acton to Belluno | 677.18 mi (1,089.82 km) |
| Acton to Belmonte Mezzagno | 1,142.14 mi (1,838.10 km) |
| Acton to Belpasso | 1,215.73 mi (1,956.53 km) |
