| Portishead to Cortona | 890.39 mi (1,432.94 km) |
| Portishead to Cosenza | 1,242.02 mi (1,998.84 km) |
| Portishead to Cossato | 644.81 mi (1,037.71 km) |
| Portishead to Costa Volpino | 703.55 mi (1,132.26 km) |
| Portishead to Creazzo | 768.90 mi (1,237.42 km) |
| Portishead to Crema | 708.57 mi (1,140.34 km) |
| Portishead to Cremona | 732.00 mi (1,178.05 km) |
| Portishead to Crevalcore | 792.06 mi (1,274.69 km) |
| Portishead to Crispiano | 1,211.88 mi (1,950.33 km) |
| Portishead to Crosia | 1,246.59 mi (2,006.18 km) |
| Portishead to Crotone | 1,283.93 mi (2,066.29 km) |
| Portishead to Cuneo | 683.30 mi (1,099.66 km) |
| Portishead to Cuorgne | 635.40 mi (1,022.58 km) |
| Portishead to Cusano Milanino | 681.99 mi (1,097.56 km) |
| Portishead to Cutro | 1,281.77 mi (2,062.81 km) |
