| Martos to Coudekerque-Branche | 970.77 mi (1,562.30 km) |
| Martos to Coueron | 666.12 mi (1,072.02 km) |
| Martos to Coulommiers | 844.03 mi (1,358.33 km) |
| Martos to Courbevoic | 832.72 mi (1,340.14 km) |
| Martos to Courcouronnes | 818.92 mi (1,317.92 km) |
| Martos to Cournon-d'Auvergne | 665.66 mi (1,071.27 km) |
| Martos to Courrieres | 943.83 mi (1,518.95 km) |
| Martos to Coutras | 543.59 mi (874.82 km) |
| Martos to Couzeix | 623.92 mi (1,004.11 km) |
| Martos to Cran-Gevrier | 766.21 mi (1,233.10 km) |
| Martos to Craponne | 712.19 mi (1,146.15 km) |
| Martos to Creil | 859.71 mi (1,383.57 km) |
| Martos to Crepy-en-Valois | 865.94 mi (1,393.60 km) |
| Martos to Crest | 672.18 mi (1,081.77 km) |
| Martos to Creteil | 830.01 mi (1,335.77 km) |
