| Clarksburg to Cernavoda | 5,029.81 mi (8,094.69 km) |
| Clarksburg to Chitila | 4,942.73 mi (7,954.56 km) |
| Clarksburg to Cisnadie | 4,821.42 mi (7,759.33 km) |
| Clarksburg to Cluj-Napoca | 4,756.94 mi (7,655.55 km) |
| Clarksburg to Codlea | 4,872.33 mi (7,841.25 km) |
| Clarksburg to Comanesti | 4,880.49 mi (7,854.40 km) |
| Clarksburg to Comarnic | 4,898.21 mi (7,882.91 km) |
| Clarksburg to Constanta | 5,060.37 mi (8,143.88 km) |
| Clarksburg to Corabia | 4,914.79 mi (7,909.58 km) |
| Clarksburg to Costesti | 4,892.73 mi (7,874.09 km) |
| Clarksburg to Covasna | 4,894.58 mi (7,877.06 km) |
| Clarksburg to Craiova | 4,864.38 mi (7,828.47 km) |
| Clarksburg to Cristuru Secuiesc | 4,832.11 mi (7,776.53 km) |
| Clarksburg to Cugir | 4,785.35 mi (7,701.28 km) |
| Clarksburg to Cumpana | 5,059.72 mi (8,142.83 km) |
