| Clarksburg to Cividale del Friuli | 4,374.60 mi (7,040.24 km) |
| Clarksburg to Civita Castellana | 4,464.03 mi (7,184.17 km) |
| Clarksburg to Civitanova Marche | 4,485.67 mi (7,218.98 km) |
| Clarksburg to Civitavecchia | 4,444.18 mi (7,152.21 km) |
| Clarksburg to Civitella in Val di Chiana | 4,394.43 mi (7,072.15 km) |
| Clarksburg to Clusone | 4,235.61 mi (6,816.56 km) |
| Clarksburg to Coccaglio | 4,247.26 mi (6,835.30 km) |
| Clarksburg to Codigoro | 4,362.76 mi (7,021.19 km) |
| Clarksburg to Codogno | 4,248.78 mi (6,837.76 km) |
| Clarksburg to Codroipo | 4,360.42 mi (7,017.42 km) |
| Clarksburg to Cogoleto | 4,228.21 mi (6,804.64 km) |
| Clarksburg to Colle di Val d'Elsa | 4,369.65 mi (7,032.27 km) |
| Clarksburg to Colle Salvetti | 4,334.50 mi (6,975.71 km) |
| Clarksburg to Collecchio | 4,284.30 mi (6,894.91 km) |
| Clarksburg to Colleferro | 4,510.82 mi (7,259.47 km) |
