| Knowle to Cortona | 892.38 mi (1,436.14 km) |
| Knowle to Cosenza | 1,244.99 mi (2,003.62 km) |
| Knowle to Cossato | 649.75 mi (1,045.67 km) |
| Knowle to Costa Volpino | 699.63 mi (1,125.94 km) |
| Knowle to Creazzo | 762.03 mi (1,226.37 km) |
| Knowle to Crema | 708.69 mi (1,140.53 km) |
| Knowle to Cremona | 732.09 mi (1,178.18 km) |
| Knowle to Crevalcore | 790.39 mi (1,272.00 km) |
| Knowle to Crispiano | 1,208.63 mi (1,945.09 km) |
| Knowle to Crosia | 1,247.50 mi (2,007.66 km) |
| Knowle to Crotone | 1,285.29 mi (2,068.48 km) |
| Knowle to Cuneo | 696.88 mi (1,121.53 km) |
| Knowle to Cuorgne | 643.52 mi (1,035.65 km) |
| Knowle to Cusano Milanino | 682.98 mi (1,099.15 km) |
| Knowle to Cutro | 1,283.60 mi (2,065.76 km) |
