| Castro Valley to Busto Arsizio | 5,922.59 mi (9,531.48 km) |
| Castro Valley to Busto Garolfo | 5,927.15 mi (9,538.83 km) |
| Castro Valley to Cabras | 6,226.84 mi (10,021.13 km) |
| Castro Valley to Cadelbosco di Sopra | 6,020.01 mi (9,688.27 km) |
| Castro Valley to Cadoneghe | 6,018.89 mi (9,686.46 km) |
| Castro Valley to Cagli | 6,147.10 mi (9,892.80 km) |
| Castro Valley to Cagliari | 6,284.31 mi (10,113.62 km) |
| Castro Valley to Cairo Montenotte | 5,972.26 mi (9,611.42 km) |
| Castro Valley to Caivano | 6,343.39 mi (10,208.69 km) |
| Castro Valley to Calcinaia | 6,081.35 mi (9,786.99 km) |
| Castro Valley to Calcinato | 5,975.94 mi (9,617.35 km) |
| Castro Valley to Calderara di Reno | 6,050.25 mi (9,736.94 km) |
| Castro Valley to Caldogno | 5,998.23 mi (9,653.22 km) |
| Castro Valley to Calenzano | 6,086.92 mi (9,795.95 km) |
| Castro Valley to Calolziocorte | 5,928.91 mi (9,541.66 km) |
