| Rio Grande City to Cadiz | 5,288.19 mi (8,510.51 km) |
| Rio Grande City to Calafell | 5,537.67 mi (8,912.03 km) |
| Rio Grande City to Calahorra | 5,340.46 mi (8,594.63 km) |
| Rio Grande City to Calasparra | 5,470.81 mi (8,804.42 km) |
| Rio Grande City to Calatayud | 5,383.24 mi (8,663.49 km) |
| Rio Grande City to Caldas de Montbuy | 5,551.93 mi (8,934.96 km) |
| Rio Grande City to Caldas de Reyes | 5,017.72 mi (8,075.25 km) |
| Rio Grande City to Calella | 5,575.28 mi (8,972.54 km) |
| Rio Grande City to Callosa de Segura | 5,514.26 mi (8,874.34 km) |
| Rio Grande City to Calpe | 5,543.54 mi (8,921.46 km) |
| Rio Grande City to Calvia | 5,632.82 mi (9,065.15 km) |
| Rio Grande City to Camas | 5,278.20 mi (8,494.45 km) |
| Rio Grande City to Cambados | 5,012.44 mi (8,066.74 km) |
| Rio Grande City to Cambre | 5,016.02 mi (8,072.51 km) |
| Rio Grande City to Cambrils | 5,517.88 mi (8,880.16 km) |
