| Portage to Chivasso | 4,393.21 mi (7,070.19 km) |
| Portage to Ciampino | 4,722.06 mi (7,599.42 km) |
| Portage to Cicciano | 4,836.33 mi (7,783.32 km) |
| Portage to Cingoli | 4,680.47 mi (7,532.49 km) |
| Portage to Cinisello Balsamo | 4,432.23 mi (7,132.99 km) |
| Portage to Cinisi | 4,899.27 mi (7,884.61 km) |
| Portage to Cirie | 4,379.95 mi (7,048.85 km) |
| Portage to Ciro Marina | 5,012.19 mi (8,066.35 km) |
| Portage to Cislago | 4,418.37 mi (7,110.67 km) |
| Portage to Cisterna di Latina | 4,740.24 mi (7,628.68 km) |
| Portage to Cisternino | 4,963.05 mi (7,987.25 km) |
| Portage to Citta di Castello | 4,637.76 mi (7,463.75 km) |
| Portage to Citta Sant'Angelo | 4,749.86 mi (7,644.16 km) |
| Portage to Cittadella | 4,529.18 mi (7,289.01 km) |
| Portage to Cittanova | 5,015.41 mi (8,071.52 km) |
