| Civitavecchia to Calafell | 531.50 mi (855.37 km) |
| Civitavecchia to Calahorra | 704.01 mi (1,133.00 km) |
| Civitavecchia to Calasparra | 760.25 mi (1,223.50 km) |
| Civitavecchia to Calatayud | 693.94 mi (1,116.79 km) |
| Civitavecchia to Caldas de Montbuy | 496.42 mi (798.90 km) |
| Civitavecchia to Caldas de Reyes | 1,041.66 mi (1,676.39 km) |
| Civitavecchia to Calella | 471.09 mi (758.14 km) |
| Civitavecchia to Callosa de Segura | 723.28 mi (1,164.00 km) |
| Civitavecchia to Calpe | 662.55 mi (1,066.28 km) |
| Civitavecchia to Calvia | 516.14 mi (830.65 km) |
| Civitavecchia to Camas | 999.13 mi (1,607.94 km) |
| Civitavecchia to Cambados | 1,050.50 mi (1,690.62 km) |
| Civitavecchia to Cambre | 1,023.22 mi (1,646.71 km) |
| Civitavecchia to Cambrils | 559.43 mi (900.31 km) |
| Civitavecchia to Campo de Criptana | 801.61 mi (1,290.07 km) |
