| Castle Rock to Cernavoda | 5,952.46 mi (9,579.56 km) |
| Castle Rock to Chitila | 5,884.41 mi (9,470.04 km) |
| Castle Rock to Cisnadie | 5,764.38 mi (9,276.87 km) |
| Castle Rock to Cluj-Napoca | 5,690.07 mi (9,157.29 km) |
| Castle Rock to Codlea | 5,802.62 mi (9,338.41 km) |
| Castle Rock to Comanesti | 5,790.07 mi (9,318.21 km) |
| Castle Rock to Comarnic | 5,832.94 mi (9,387.20 km) |
| Castle Rock to Constanta | 5,979.00 mi (9,622.26 km) |
| Castle Rock to Corabia | 5,881.76 mi (9,465.78 km) |
| Castle Rock to Costesti | 5,843.32 mi (9,403.92 km) |
| Castle Rock to Covasna | 5,815.18 mi (9,358.63 km) |
| Castle Rock to Craiova | 5,830.35 mi (9,383.04 km) |
| Castle Rock to Cristuru Secuiesc | 5,757.92 mi (9,266.47 km) |
| Castle Rock to Cugir | 5,734.13 mi (9,228.19 km) |
| Castle Rock to Cumpana | 5,979.92 mi (9,623.74 km) |
