| Penarth to Cortona | 903.02 mi (1,453.26 km) |
| Penarth to Cosenza | 1,254.30 mi (2,018.60 km) |
| Penarth to Cossato | 657.18 mi (1,057.64 km) |
| Penarth to Costa Volpino | 717.28 mi (1,154.35 km) |
| Penarth to Creazzo | 783.00 mi (1,260.11 km) |
| Penarth to Crema | 721.67 mi (1,161.41 km) |
| Penarth to Cremona | 745.08 mi (1,199.09 km) |
| Penarth to Crevalcore | 805.35 mi (1,296.09 km) |
| Penarth to Crispiano | 1,225.18 mi (1,971.74 km) |
| Penarth to Crosia | 1,259.21 mi (2,026.50 km) |
| Penarth to Crotone | 1,296.47 mi (2,086.46 km) |
| Penarth to Cuneo | 694.06 mi (1,116.98 km) |
| Penarth to Cuorgne | 647.24 mi (1,041.64 km) |
| Penarth to Cusano Milanino | 694.98 mi (1,118.46 km) |
| Penarth to Cutro | 1,294.23 mi (2,082.86 km) |
