| Kilkis to Cognac | 1,205.45 mi (1,939.98 km) |
| Kilkis to Cogolin | 850.38 mi (1,368.56 km) |
| Kilkis to Colmar | 905.28 mi (1,456.90 km) |
| Kilkis to Colombes | 1,142.37 mi (1,838.46 km) |
| Kilkis to Colomiers | 1,111.95 mi (1,789.51 km) |
| Kilkis to Combs-la-Ville | 1,123.05 mi (1,807.38 km) |
| Kilkis to Comines | 1,164.09 mi (1,873.42 km) |
| Kilkis to Compiegne | 1,131.29 mi (1,820.63 km) |
| Kilkis to Concarneau | 1,396.26 mi (2,247.07 km) |
| Kilkis to Conde-sur-l'Escaut | 1,131.43 mi (1,820.85 km) |
| Kilkis to Conflans-Sainte-Honorine | 1,150.75 mi (1,851.96 km) |
| Kilkis to Corbas | 956.71 mi (1,539.68 km) |
| Kilkis to Corbeil-Essonnes | 1,125.03 mi (1,810.57 km) |
| Kilkis to Cormeilles-en-Parisis | 1,145.76 mi (1,843.93 km) |
| Kilkis to Cosne sur Loire | 1,079.02 mi (1,736.52 km) |
