| Castle Rock to Cadiz | 5,073.18 mi (8,164.49 km) |
| Castle Rock to Calafell | 5,203.99 mi (8,375.02 km) |
| Castle Rock to Calahorra | 5,014.45 mi (8,069.98 km) |
| Castle Rock to Calasparra | 5,200.04 mi (8,368.65 km) |
| Castle Rock to Calatayud | 5,068.42 mi (8,156.83 km) |
| Castle Rock to Caldas de Montbuy | 5,208.47 mi (8,382.23 km) |
| Castle Rock to Caldas de Reyes | 4,727.19 mi (7,607.67 km) |
| Castle Rock to Calella | 5,228.74 mi (8,414.85 km) |
| Castle Rock to Callosa de Segura | 5,239.32 mi (8,431.88 km) |
| Castle Rock to Calpe | 5,254.98 mi (8,457.07 km) |
| Castle Rock to Calvia | 5,314.69 mi (8,553.17 km) |
| Castle Rock to Camas | 5,048.72 mi (8,125.13 km) |
| Castle Rock to Cambados | 4,724.38 mi (7,603.16 km) |
| Castle Rock to Cambre | 4,713.51 mi (7,585.66 km) |
| Castle Rock to Cambrils | 5,189.40 mi (8,351.54 km) |
