| Portage to Coudekerque-Branche | 3,966.68 mi (6,383.75 km) |
| Portage to Coueron | 3,928.41 mi (6,322.16 km) |
| Portage to Coulommiers | 4,068.27 mi (6,547.25 km) |
| Portage to Courbevoic | 4,032.70 mi (6,490.00 km) |
| Portage to Courcouronnes | 4,049.06 mi (6,516.33 km) |
| Portage to Cournon-d'Auvergne | 4,181.94 mi (6,730.19 km) |
| Portage to Courrieres | 4,006.86 mi (6,448.41 km) |
| Portage to Coutras | 4,068.66 mi (6,547.88 km) |
| Portage to Couzeix | 4,096.45 mi (6,592.60 km) |
| Portage to Cran-Gevrier | 4,294.11 mi (6,910.71 km) |
| Portage to Craponne | 4,244.17 mi (6,830.33 km) |
| Portage to Creil | 4,029.47 mi (6,484.81 km) |
| Portage to Crepy-en-Valois | 4,046.13 mi (6,511.62 km) |
| Portage to Crest | 4,294.45 mi (6,911.25 km) |
| Portage to Creteil | 4,044.64 mi (6,509.21 km) |
