| Kilkis to Coudekerque-Branche | 1,196.34 mi (1,925.32 km) |
| Kilkis to Coueron | 1,287.36 mi (2,071.81 km) |
| Kilkis to Coulommiers | 1,104.47 mi (1,777.47 km) |
| Kilkis to Courbevoic | 1,141.69 mi (1,837.37 km) |
| Kilkis to Courcouronnes | 1,127.53 mi (1,814.58 km) |
| Kilkis to Cournon-d'Auvergne | 1,038.14 mi (1,670.73 km) |
| Kilkis to Courrieres | 1,156.85 mi (1,861.78 km) |
| Kilkis to Coutras | 1,190.72 mi (1,916.27 km) |
| Kilkis to Couzeix | 1,132.57 mi (1,822.70 km) |
| Kilkis to Cran-Gevrier | 904.83 mi (1,456.18 km) |
| Kilkis to Craponne | 966.33 mi (1,555.16 km) |
| Kilkis to Creil | 1,141.18 mi (1,836.55 km) |
| Kilkis to Crepy-en-Valois | 1,123.71 mi (1,808.44 km) |
| Kilkis to Crest | 937.95 mi (1,509.48 km) |
| Kilkis to Creteil | 1,130.16 mi (1,818.81 km) |
