| Castro Valley to Chivasso | 5,917.51 mi (9,523.32 km) |
| Castro Valley to Ciampino | 6,245.64 mi (10,051.39 km) |
| Castro Valley to Cicciano | 6,349.05 mi (10,217.82 km) |
| Castro Valley to Cingoli | 6,173.50 mi (9,935.29 km) |
| Castro Valley to Cinisello Balsamo | 5,936.57 mi (9,553.99 km) |
| Castro Valley to Cinisi | 6,468.35 mi (10,409.80 km) |
| Castro Valley to Cirie | 5,906.57 mi (9,505.71 km) |
| Castro Valley to Ciro Marina | 6,515.31 mi (10,485.38 km) |
| Castro Valley to Cislago | 5,923.81 mi (9,533.45 km) |
| Castro Valley to Cisterna di Latina | 6,264.22 mi (10,081.28 km) |
| Castro Valley to Cisternino | 6,442.97 mi (10,368.96 km) |
| Castro Valley to Citta di Castello | 6,140.70 mi (9,882.51 km) |
| Castro Valley to Citta Sant'Angelo | 6,245.74 mi (10,051.54 km) |
| Castro Valley to Cittadella | 6,003.40 mi (9,661.53 km) |
| Castro Valley to Cittanova | 6,545.85 mi (10,534.52 km) |
