| Clarksburg to Cadiz | 3,771.79 mi (6,070.11 km) |
| Clarksburg to Calafell | 4,009.85 mi (6,453.24 km) |
| Clarksburg to Calahorra | 3,812.61 mi (6,135.80 km) |
| Clarksburg to Calasparra | 3,946.01 mi (6,350.49 km) |
| Clarksburg to Calatayud | 3,855.44 mi (6,204.73 km) |
| Clarksburg to Caldas de Montbuy | 4,024.33 mi (6,476.54 km) |
| Clarksburg to Caldas de Reyes | 3,490.36 mi (5,617.20 km) |
| Clarksburg to Calella | 4,047.78 mi (6,514.27 km) |
| Clarksburg to Callosa de Segura | 3,989.13 mi (6,419.88 km) |
| Clarksburg to Calpe | 4,017.21 mi (6,465.08 km) |
| Clarksburg to Calvia | 4,105.09 mi (6,606.50 km) |
| Clarksburg to Camas | 3,758.85 mi (6,049.28 km) |
| Clarksburg to Cambados | 3,485.20 mi (5,608.88 km) |
| Clarksburg to Cambre | 3,488.26 mi (5,613.80 km) |
| Clarksburg to Cambrils | 3,990.01 mi (6,421.30 km) |
