| Castro Valley to Acqui Terme | 5,963.05 mi (9,596.59 km) |
| Castro Valley to Acri | 6,486.87 mi (10,439.61 km) |
| Castro Valley to Adelfia | 6,411.88 mi (10,318.93 km) |
| Castro Valley to Adrano | 6,549.22 mi (10,539.94 km) |
| Castro Valley to Adria | 6,044.84 mi (9,728.23 km) |
| Castro Valley to Afragola | 6,345.79 mi (10,212.56 km) |
| Castro Valley to Agliana | 6,080.25 mi (9,785.21 km) |
| Castro Valley to Agrate Brianza | 5,938.56 mi (9,557.19 km) |
| Castro Valley to Agrigento | 6,531.83 mi (10,511.97 km) |
| Castro Valley to Agropoli | 6,397.65 mi (10,296.02 km) |
| Castro Valley to Ala | 5,976.00 mi (9,617.45 km) |
| Castro Valley to Alassio | 5,991.28 mi (9,642.03 km) |
| Castro Valley to Alatri | 6,271.31 mi (10,092.70 km) |
| Castro Valley to Alba | 5,948.80 mi (9,573.67 km) |
| Castro Valley to Albano Laziale | 6,251.39 mi (10,060.64 km) |
