| Castro Valley to Corato | 6,390.34 mi (10,284.26 km) |
| Castro Valley to Corbetta | 5,932.51 mi (9,547.45 km) |
| Castro Valley to Corciano | 6,160.48 mi (9,914.33 km) |
| Castro Valley to Cordenons | 6,009.46 mi (9,671.29 km) |
| Castro Valley to Cori | 6,263.59 mi (10,080.27 km) |
| Castro Valley to Coriano | 6,121.89 mi (9,852.23 km) |
| Castro Valley to Corigliano Calabro | 6,484.72 mi (10,436.15 km) |
| Castro Valley to Corleone | 6,494.49 mi (10,451.88 km) |
| Castro Valley to Cormano | 5,935.13 mi (9,551.67 km) |
| Castro Valley to Cornaredo | 5,934.04 mi (9,549.92 km) |
| Castro Valley to Cornate d'Adda | 5,938.21 mi (9,556.62 km) |
| Castro Valley to Cornedo Vicentino | 5,993.28 mi (9,645.25 km) |
| Castro Valley to Correggio | 6,025.01 mi (9,696.31 km) |
| Castro Valley to Corridonia | 6,188.58 mi (9,959.56 km) |
| Castro Valley to Corsico | 5,940.15 mi (9,559.75 km) |
