| Grande-Synthe to Coudekerque-Branche | 3.94 mi (6.35 km) |
| Grande-Synthe to Coueron | 319.30 mi (513.86 km) |
| Grande-Synthe to Coulommiers | 155.81 mi (250.75 km) |
| Grande-Synthe to Courbevoic | 146.23 mi (235.33 km) |
| Grande-Synthe to Courcouronnes | 165.23 mi (265.91 km) |
| Grande-Synthe to Cournon-d'Auvergne | 366.54 mi (589.88 km) |
| Grande-Synthe to Courrieres | 47.63 mi (76.65 km) |
| Grande-Synthe to Coutras | 427.66 mi (688.25 km) |
| Grande-Synthe to Couzeix | 358.31 mi (576.65 km) |
| Grande-Synthe to Cran-Gevrier | 393.58 mi (633.40 km) |
| Grande-Synthe to Craponne | 380.54 mi (612.42 km) |
| Grande-Synthe to Creil | 121.56 mi (195.64 km) |
| Grande-Synthe to Crepy-en-Valois | 125.65 mi (202.21 km) |
| Grande-Synthe to Crest | 452.13 mi (727.63 km) |
| Grande-Synthe to Creteil | 153.75 mi (247.43 km) |
