| Kilkis to Civita Castellana | 547.14 mi (880.54 km) |
| Kilkis to Civitanova Marche | 494.23 mi (795.38 km) |
| Kilkis to Civitavecchia | 577.07 mi (928.70 km) |
| Kilkis to Civitella in Val di Chiana | 594.43 mi (956.64 km) |
| Kilkis to Clusone | 729.96 mi (1,174.76 km) |
| Kilkis to Coccaglio | 720.32 mi (1,159.25 km) |
| Kilkis to Codigoro | 604.91 mi (973.52 km) |
| Kilkis to Codogno | 723.16 mi (1,163.82 km) |
| Kilkis to Codroipo | 602.73 mi (970.00 km) |
| Kilkis to Cogoleto | 758.45 mi (1,220.61 km) |
| Kilkis to Colle di Val d'Elsa | 622.82 mi (1,002.33 km) |
| Kilkis to Colle Salvetti | 657.51 mi (1,058.17 km) |
| Kilkis to Collecchio | 690.52 mi (1,111.28 km) |
| Kilkis to Colleferro | 513.17 mi (825.86 km) |
| Kilkis to Collegno | 821.07 mi (1,321.38 km) |
